In Honor of World Book Day

I’m not quite sure where all of these World Celebration Days come from – I mean, do we really need a World Mosquito Day? Has anyone actually woken up on August 20th to purposefully celebrate mosquitoes? But I can’t help chuckling as I buy into the idea. March 5 is World Book Day, so I thought I might talk about some books that I’ve really enjoyed using, long before Google.

I’ve already mentioned Secret Teachings in the Art of Japanese Gardens, by David A. Slawson, a book I love for a number of reasons. I was always fascinated by Japanese folklore, and Slawson explains in great detail how myths and legends are honored and recreated in garden architecture. For example, there’s an ancient Asian folktale of a giant turtle that supported the island home of the immortals, their Mount Olympus. There are Turtle Islands in most classical Japanese gardens. Slawson’s excellent illustrations (the second reason I love the book) have helped me recreate them in my work. His explanations of how ancient masters used the shapes of stones to create movement are inspiring.

See the Turtle Island?

I have a couple of copies of Rick Bartel’s, The R.I.S.E Method, a How-to Guide for Designing Natural Appearing Ponds, Streams and Waterfalls. I’ve recommended his beautifully illustrated book to dozens of people who’ve attended my seminars over the years (including my eldest, who will listen to anyone except his old man.) Rick presents the concept of naturalistic rock placement as accessibly as anyone ever has. He combines well-expressed theory with step by step instruction that, properly followed, can make anyone’s work look good (including my eldest’s).

The third is one I haven’t carried as regularly lately, my Taylor’s Guide to Perennials, but when I was planting every week it never left my bag. It’s pretty sketchy – cover taped on, color plates loose – but it never needs a signal.

So my hope is, for World Book Day, I’ve helped folks remember how useful books are, even today. And as far as this silly “Day” stuff is concerned, just wait ‘til World Corgi Day.

About the Author:


Demi has been in water garden construction since 1986. As Atlantic’s Director of Product Information, if he’s not building water features, he’s writing or talking about them. If you have a design or construction question, he’s the one to ask.

Spring Is For Sprucing!

It’s here! Spring! Well, meteorological Spring anyway. I personally can’t wait until the solstice, probably because it’s 23 degrees with a 40-mile-an-hour wind this morning. For those of us who endure winter without running water features, it’s time to start thinking about getting ponds started back up again.

Even if you don’t freeze for winter, Spring is the perfect time for seasonal maintenance. Pumps should be pulled, cleaned and serviced if needed. Diffusers in shallow water that kept ice from sealing the pond can be moved back into deeper water. Filter pads in pond systems can be cleaned if they weren’t in the fall. Remember to clean only half in chlorinated water. Rinse the others only in pond water, and don’t let them dry out, to preserve the bacteria living in them. Put the rinsed mats back into the bottom of upflow biofilters, to quickly reseed the cleaned mats above them.

Your plants will appreciate some attention too. They may just need pruning and feeding with Pondtabbs, or they might benefit from a replanting. If you’re careful, they may never realize they’ve been moved, but will reward you with better growth and blooms in season. To accelerate the growth of waterlilies, keep them close to the surface early in the season, so the leaves are in the warmest water. As the rest of the pond gradually warms, you can then drop them down into deeper water. 

Debris that builds up over winter is likely to contribute to nutrients in the water, just as water warms. Algae blooms can be common this time of year, before other plants wake up and compete for nutrients. Now is the perfect time to replace your ultraviolet lamps. They may still be emitting visible light, but they decline in UV output after a year and aren’t effective. A new bulb now keeps algae at bay, right when you need it most.

One thing I personally don’t like doing is a major cleanup in Spring. My fish have had to overwinter under ice. They started their fast fat and happy, but that was four months ago. They are thin and stressed and their immune systems are at low ebb – this is not the time to mess with them. We do our major cleanup in the fall, after the leaves are mostly down. I may go in with a PondoVac and pull out some lingering leaves, but it’s more likely we’ll wait until temps are higher and my fish are feeding again (above 55 degrees Fahrenheit).

Contractors, as for the spring major cleanup money that you may be giving up, there’s no shortage of work in the spring. A quick vacuuming in addition to the steps above can be quite satisfactory all around and a lot less time-consuming, at a time when all your customers want to see you. Set up a follow-up later in the spring for your needier jobs, and have your customers work on a wish list of extras. Two trips will be better than one.

Happy Spring! 

About the Author:


Demi has been in water garden construction since 1986. As Atlantic’s Director of Product Information, if he’s not building water features, he’s writing or talking about them. If you have a design or construction question, he’s the one to ask.

FAQs: How Many Eco-Blox Do I Use?


Do you have a method for determining how many Eco-Blox or Gallons of water storage are needed for a system with a pump that delivers 5000 gallons per hour to a pond-free water fall/feature system? 



Hi Steve! It’s not about the pump size, it’s all about the quantity of water that has to be pulled from the reservoir to get the system recirculating. We have this all written out at the back of the Catalog here.

Take the average width and the maximum length of your stream and multiply by an assumed depth needed to get things flowing. That gives you the volume you need to pull from the reservoir. The reservoir should hold at least three times as much, so you only drop the water level inside by a third when you start up the system. Read more about this on page 151.

W x L x .25 = Transitional Volume in cubic feet x 3 = Volume in reservoir / 4.3 cu.ft. per Eco-Blox = number of blocks

That should get you going. Don’t forget to figure out the Total Dynamic Head of your system – the TT5000 only delivers 5000gph at 1’; of head, you probably have more like 5’ of head. The calculator is a simple 3 step process in the catalog. You’ll know exactly what the pump will deliver when you know the total work it needs to do.

Find the Total Dynamic Head of any system with the TDH calculator on Catalog page 154. You can read more about Total Dynamic Head, friction and flow in Demi’s article in POND Trade Magazine here: Flow, Friction and Total Dynamic Head: A Pump and Plumbing Primer for Ponds

Have a question about building a water feature? Send it in to and we’ll be happy to answer it!

About the Author:


Demi has been in water garden construction since 1986. As Atlantic’s Director of Product Information, if he’s not building water features, he’s writing or talking about them. If you have a design or construction question, he’s the one to ask.

An Innovative Wetland for Innovation Day

Did you know February 16th is Innovation Day? Perfect timing again! I mentioned an “innovative” use of Eco-Blox in a blog celebrating World Wetland Day February 2nd. I think it only appropriate that I expand on that innovative use this week.

To start with, let’s look at the word. According to Oxford Languages, the group that publishes the Oxford English Dictionary (my mom’s favorite), “innovation” means ‘featuring new methods; advanced and original’. Water matrix blocks were themselves the very definition of innovative when they were invented by Humberto Urriola, who came up with the idea of a modular drainage cell back in 1984. His Flo-Cell® was a flat three-dimensional mat that, in various configurations, captured, transported and held stormwater long enough for it to percolate back into the ground, recharging fragile aquifers, critical given the climate and erosion issues Down Under.

Almost four decades later, water matrix blocks are still used for stormwater mitigation and rain harvesting, but the latest innovation involves using their storage capacity to capture and remove even the finest sediments suspended in pond water. They’ve been used to trap sediments in dual chamber rain harvesting systems before, but this is a different application, one that combines the physics of sedimentation with the advantages of upflow bogs.

The idea is simple. First, the physics in a nutshell, because the math is beyond me. When velocity drops, solids drop out. Pump solids-laden water into an Eco-Blox chamber that’s only open at the top, with lots of partitions, and cover the top with a thin layer of gravel. The water slows to nothing if the chamber’s big enough, and forcing the water to exit upwards, through the gravel, ensures that virtually all sediments will drop out of suspension and stay in the chamber.

And sediment is only half the issue. Dissolved organics and minerals in the water, which would have fueled algae blooms, pass through that same gravel bed. Billions of bacteria thriving in the well-oxygenated nutrient-rich water strip out ammonia and nitrites, excreting nitrates right where the roots of plants spreading through the gravel can absorb them. The plants will also thrive, the water will be stripped of all organics and algae will never get a foothold.

Standard stuff, but the innovation is in the details. The appropriate number of Eco-Blox for the volume to be cleaned, the correct flow into the chamber, the right thickness to the gravel bed, the optimal plants for the artificial wetlands –that’s all pretty straightforward. The innovation is in the delivery of the sediment laden water, and the flushing of the accumulated solids in the chamber.

The delivery is a matter of shaping the bottom to accumulate solids near bottom drains, and plumbing the skimmers to pull water off top and bottom to deliver wastes to the chambers. But, you may say, there are lots of ways to gather sediments, and any gravel bed will trap them, both valid points. The trick is keeping the gravel from clogging, channeling and going septic when oxygen can’t penetrate the accumulating goop. That’s the huge advantage to creating these Eco-Blox bogs, and upflow is the key. 

Traditional downflow bogs pull water through a large volume of gravel, often feet thick, to trap organics for years, but over time channeling renders them less effective. Anaerobic zones build up with no easy way to clean them out. Downflow grids of perforated pipe, covered with a thinner layer of gravel at the bottom of ponds, address these issues, but the grids tend to clog over time and are relatively inaccessible.

Eco-Blox sediment traps are designed to efficiently collect both top and bottom water via skimmers and bottom drains, separate out solids as water passes up and out, then clean easily, flushing sediments out onto grade by turning a valve. The continuous automatic capture and easy removal of solids is the innovation. Monthly maintenance consists of turning a valve or opening a threaded cap for a couple of minutes, to flush the accumulated wastes out where they can be dried and collected – that’s some black gold there.

It’s no wonder that Botanical Gardens appreciate the idea. A filtration system based on plants that cleans and clears vast volumes of water, with no moving parts except multiple magnetic induction pumps, powerful and efficient, inexpensive to buy and run, housed in easily accessed skimmers that require only to be emptied of leaves on a weekly basis? And the system can collect the fertile organic sediments and dry them in a free-draining gravel bed at grade, whenever compost is needed?


Case in point: the Botanical Garden in Culiacan Sinaloa Mexico used riverwater to feed their Victoria Pool, where they showcased the leaves and blooms of the world’s largest waterlily and other aquatics. The 225’ x 30’ pool, about 3’ deep, had a number of serious leaks, so it was constantly being refilled with muddy water that never cleared. The water was so turbid from both mud and algae that you couldn’t see your hand with your arm in up to your elbow. Two 8” weirs that spanned the width of the pool upstream and downstream of the angular bridge provided the only circulation. They had installed a 10hp irrigation pump drawing about 8000 watts an hour, but had to valve it back because the high-head pump cavitated otherwise, so they couldn’t keep the whole weir covered with water. (If that sounds like a foreign language, check out this article I wrote in POND Trade Magazine, Flow, Friction and Total Dynamic Head: A Pump and Plumbing Primer for Ponds)

I’ll tell you what we did – next time.

About the Author:


Demi has been in water garden construction since 1986. As Atlantic’s Director of Product Information, if he’s not building water features, he’s writing or talking about them. If you have a design or construction question, he’s the one to ask.

Golden Treasure For The Pond Border

Lysimachia nummularia: The Creeping Jenny

I love to use plants along the edges of the water features I build to soften the hard edges of stone and add color and life to them. One of the plants I tend to use over and over is the Creeping Jenny or Moneywort, Lysimachia nummularia, an attractive and versatile perennial ground cover that neither rabbits nor deer will touch. 

Floating Bog, Nelson’s Water Gardens

Named for its round, coin shaped leaves, gold in color when grown in full sun, Creeping Jenny performs beautifully just about anywhere I put it. With a constant supply of moisture, along streams and pond edges, it can handle the hottest sun. Forget “creeping” – this plant positively runs in the sun, growing quickly from both its vine-like branches and long roots to cover edges both in and out of the water.

In deep shade its growth slows somewhat, leaves glowing a soft green as it carpets soil, stone and gravel alike. Easy to propagate, one plant will spread to cover many running feet of stream edge. It is vigorous almost to a fault. If it thins out in one spot simply grab a handful from somewhere else and tuck it into moist soil. It will usually root without any extra care.

As if that weren’t enough, for all you other closeted herbalists, Creeping Jenny is a mild astringent, a diuretic and an effective vulnerary – applied to open wounds its crushed leaves are antibacterial and promote healing. (I don’t know about you guys but ‘vulnerary’ is my new favorite obscure word of the day.)

Finally, those of us who appreciate a brew every now and then might be interested to know the ancient Anglo Saxons called it alehoof – ‘ale herb’ – and used it to flavor and clarify beer. What a plant!

About the Author:


Demi has been in water garden construction since 1986. As Atlantic’s Director of Product Information, if he’s not building water features, he’s writing or talking about them. If you have a design or construction question, he’s the one to ask.

OASE Aquarius Fountain Sets

Meet one of the newest products here at Atlantic-OASE: The Aquarius Fountain Sets!

OASE Aquarius Fountain Sets are the perfect product for owners of small water gardens and ponds. Four sizes of integrated pump-and-filter units clean and circulate up to 1100 gallons, returning the water in one of two different ways – via fountain head or through a side outlet, which can divert water to an optional decorative spitter or spout.

The fountain head comes with three inserts that create different patterns in water from 10” to 24” deep. The Bell insert throws out a clear dome of water, the Vulkan a double tiered fleur de lis display and the Magma, a directional arched spray of five individual streams. All can be adjusted via the ball joint on the telescoping tube that also varies the height of the fountain head. A valve shunts water between the upright tube and a separate side outlet, to accommodate a variety of water return options.

Bell Nozzle

Vulcan Nozzle

Magma Nozzle

Setup is simple. Select the water return option you prefer, attaching the fountain head insert or hose and drop the one-piece unit into the pond. The swiveling ball joint allows perfect vertical alignment even on sloped bottoms.

Maintenance is as easy as setup. A ribbed screen keeps leaves from clogging the pump intake. When the flow slows, just pull the unit from the water and rinse off. A grounding plate protects from stray current, and the pumps are thermally protected for long service life.

Learn more about the Aquarius Fountain Sets here.

About the Author:


Demi has been in water garden construction since 1986. As Atlantic’s Director of Product Information, if he’s not building water features, he’s writing or talking about them. If you have a design or construction question, he’s the one to ask.

Wetlands for Water Features!

So last week we were talking about planning now for future projects (read last week’s blog here), and this week World Wetland Day is here – coincidence? I think not! Wetlands, natural or engineered, have a place at the edge of EVERY body of water, man-made or otherwise. Why? Because Mother Nature has put millions of years of trial and error into creating the most efficient and beneficial filters on the planet, and we ignore Her at our peril.

Wetlands make coastal life possible. They keep sediments from burying coastal seashores in mud, absorb wave and storm energy to eliminate erosion, absorb and sequester heavy metals and toxins, turn excess nutrients into food for millions of organisms – per square foot! (Yes, I’m counting bacteria, the most important organisms on the planet. Who? Us? We’re just bags hosting untold BILLIONS of microorganisms.)

Arguably, the most important function of wetlands is their ability to clean and clear water. This attribute is easily harnessed for our own devices in engineered wetlands, often affectionately referred to as ‘veggie filters’. Originally just shallow gravel beds with plants whose roots helped pull out nitrates, these have evolved into highly efficient bioconverters with sediment traps that are incredibly efficient with little maintenance.

Completely scalable, these mini wetlands punch far above their weight. This little planted bowl filter designed by the ever-innovating Nelson Water Gardens will keep a preformed or small liner pond clear and free of algae, and it’s beautiful to boot.

On the other end of the scale, this gravel bed in Culiacan has managed to remove literally all of the suspended solids from the 80,000 gallons of opaque river water that was pumped into the Victoria Pool a couple of weeks ago – and that’s before planting!

The way these both work is remarkably similar. Sediment laden water from the bottom is pumped into a grid or chamber at the bottom of the gravel bed. The water velocity slows on its way up and out through the gravel. As any moving liquid carrying dissolved solids slows, its sediment carrying capacity drops. In the bowl, the sediments drop out and are trapped in the gravel, where roots metabolize the organics along with any dissolved nitrates, starving out any algae that would green up the water if nitrates were present.

The larger application requires a little more infrastructure, but the results are impressive. In the Victoria Pool there are two settling chambers filled with Eco-Blox water matrix blocks, one at each end, each capped by a 12” layer of gravel. Skimmers fitted with twin TT9000 pumps push about 15000 gallons of sediment-laden river water into each of the Eco-Blox chambers. As the water spreads out and slows in the chambers it drops most of its sediments; whatever remains never makes it through the gravel that caps the blocks. A 4” bottom drain in each chamber will allow the accumulated solids to be flushed out to a shallow gravel pit whenever cleaning, or collection of organics for the garden, is required or desired.

The photos show the opacity of the river water on Day One and the clarity on Day Ten.

This video taken yesterday reveals the bottom a meter below water level perfectly clearly.

Bear in mind, this wetland isn’t even operating properly yet, because there are no plants or fish. It’s just working as a sediment trap until the crew at the Botanical Garden plant it up next month, when it will really come on line and shine, just in time for the balmy 120 degree days of summer in Sinaloa. I promise to keep you posted.

About the Author:


Demi has been in water garden construction since 1986. As Atlantic’s Director of Product Information, if he’s not building water features, he’s writing or talking about them. If you have a design or construction question, he’s the one to ask.

Winter Pondering

It’s almost February, the ground’s frozen and my sons are too smart to work outside with me, so it’s the perfect time to plan next year’s project. The three most important attributes of the perfect garden pond often get overlooked in the rush to dig, so I thought it might make sense to talk about them now, when all we can do here is talk anyway.

So, the waterfall is usually the first thing folks think about, followed by the pond size and the fish they want to showcase, but what I try to plan for first are crystal clear water, minimal maintenance and low operating cost. These are the less glamorous, more practical attributes of the perfect pond. Without them the charm and beauty of the water garden soon fade.

Water clarity is the most important of the three, because poor water quality is the first thing anyone notices and a constant source of aggravation. The best way to guarantee perfect clarity is to install adequate filtration, but I’m a belt-and-suspenders man – I like to minimize maintenance and safeguard against eventual overcrowding as well. 

The two most common philosophies of pond filtration adopt different approaches. The skimmer+biofilter model removes floating debris before it sinks, but relies on cleanouts to remove heavier accumulated solids that don’t float, like fish wastes. The other school of thought targets fish wastes, with a pump on the bottom designed to capture those wastes and send them to more efficient mechanical filters, but leaves need to be netted out. Combining the two methods removes more wastes and gives better results than either alone can provide. The skimmer houses the waterfall pump and traps leaves, the biofilter removes large debris and starts the stream and falls, a smaller high efficiency pump designed to capture wastes sits in the bottom and pushes wastes to a partially buried pressure filter that’s easy to backwash.

Maintenance is actually lower with the combined systems, because each has half as much work to do, so the biofilter and pressure filter can be cleaned half as often, and major pump-down cleanouts are eliminated altogether.

Aha! I hear you say. But what about those two pumps! What happened to lowering operating costs? Well, pump operating costs actually drop if the waterfall pump only runs when you’re there to enjoy it. For example, let’s say we have a 4,000 gallon pond, 15’x20’, three feet deep at the low spot, but with 18” deep shelves all the way around, a 10 foot long stream and two falls about 4’ tall total. I’d spec a TT5000 pump in a PS4600 skimmer pushing 4000gph up to a BF2600 to start the stream, and an AquaMax Eco Classic feeding a FiltoClear 8000 to polish the water. I’d set up a timer for the waterfall to run 12 hours at 310 watts plus 150 for the other pump, which I’d run 24/7. That works out to less wattage than the one larger pump alone! (12×310 + 24×150<24×310) And, having two pumps means I never have to worry about one failing, there’s a built-in reserve.

Now that the tough stuff is designed, I can start to think about the waterfall…. 

About the Author:


Demi has been in water garden construction since 1986. As Atlantic’s Director of Product Information, if he’s not building water features, he’s writing or talking about them. If you have a design or construction question, he’s the one to ask.

Never Too Late To Add Aeration

Seasonal Tip – How how to install an aerator AFTER the pond ices over.

Winter presents a number of challenges in the water garden. Ice dams may divert water out of the stream. Ice drops the water level in the pond. The cold itself puts major stress on fish and plants, not to mention people. But the single most damaging effect of the cold happens when ice seals the pond off from the atmosphere.

When oxygen cannot diffuse into pond water, fish and the other animals in the pond will suffocate. Possibly even worse, toxic gases, such as methane and carbon dioxide, will build up and poison everything in the water. Luckily the solution is simple. Any hole in the ice will allow for gas exchange in both directions, keeping the pond and its inhabitants healthy over the winter.

It’s pretty well accepted these days by contractors and pond owners alike that aeration is the simplest, most effective and least costly way to keep a hole free of ice. Set at the edge of the pond in shallow water, the circulation caused by rising bubbles will maintain a small hole in the ice without cooling the water unnecessarily. But what happens if you forget to put a diffuser in before the pond ices over?

The last thing you want to do is smash a hole in the ice with a hammer! The shock waves in the closed system will transmit the shockwaves directly into the fish, stunning and perhaps even killing them. One less forceful and less damaging way of opening a hole in ice for gas exchange is to use hot water. You can pour hot tap water directly onto the ice.

For larger diffusers or thick ice use a pot or kettle with a diameter at least as large as the diffuser. Fill it with water and bring it to a boil, then set it on the ice near the edge of the pond. For very thick ice you may have to repeat the process. Once the hole is open and the diffuser set, you can relax for the rest of the winter, knowing your fish will be safe!

About the Author:


Demi has been in water garden construction since 1986. As Atlantic’s Director of Product Information, if he’s not building water features, he’s writing or talking about them. If you have a design or construction question, he’s the one to ask.

Winter & Your Water Features

Preparing for Winter

Bare branches cast silhouettes against gray skies and crisp air hastens strides, curtailing time outdoors. Backyard views are appreciated through glass panes beneath layers of blankets.

But before winter’s cold calls us inside, pond care and cold weather preparation must adorn the top of pond owner’s to-do lists. A bit of planning and elbow grease—along with the right tools and equipment—will ensure ponds and their inhabitants remain protected from harsh temperatures.   

For pond owners in colder climates, preparing for winter means planning to keep ponds de-iced and fish and plants protected until spring’s awaited return. An afternoon of winter prep goes a long way; you’ll be glad you invested the time once spring emerges.

If you choose to keep your pump running during colder months, ensure it is frost protected—such as OASE’s AquaMax Eco Premium—which withstands temperatures to -4°F. When the water temperature reaches 40°F (and before the first frost), move your frost-protected pump to mid-level depth. Circulating the deep water lowers temperatures and will cause stress on fish.

Take precautions against water freezing in plumbing during power outages. Remove filter lids and pads, allowing for pressure relief where possible. If your pump and filter can not withstand colder temperatures, turn it off, remove it, clean it and store it in a water-filled container in a climate controlled location.

If you applied pond netting to keep out autumn leaves, you’re ahead of the game. If you skipped fall prep, consider OASE’s PondNet for a quick daily skim of floating debris. Use EasyPick pond pliers to regularly remove leaves, sticks and other debris to keep your pond’s ecosystem balanced. Decaying organic matter deprives ponds of oxygen, impacting the health of plants and fish.

When the water temperature drops below 50°F, stop feeding fish. Consider a floating deicer if the pond is at risk of freezing solid—even a small hole in the ice will allow fish to breathe and allow pond gases to escape. In small ponds, ensure that warmer water zones where fish can survive are not recirculated. If ice forms in your pond, do not attempt to crack or break it; this will cause shock waves and will threaten the health of your fish.

Consider using OASE’s AquaOxy 450 with the OxyTex air diffuser to increase pond’s oxygen levels. OxyTex—a pond aerator and filter medium compatible with all OASE filters—works with AquaOxy 450 to inject air to ensure fish stock remains healthy.

OASE’s FlexiCut 2-in-1 pond scissors are ideal to trim overgrown vegetation around the pond’s perimeter—they stabilize while cutting to provide torque. Their long handle (5.2 ft.) enables easy maintenance in hard-to-reach areas.

Now, take time to sit back and relax. Pour some hot cocoa, add a log to the fire and enjoy the warmth!

Safety First

In the colder regions of the U.S. and Canada, when the temperature dips down into the freezing range, fish and plants can be left outdoors to hibernate naturally.

However, the freezing of the pond surface can create dangerous conditions for fish due to the accumulation of gas below the ice. Always ensure that there is a small hole in the ice cover, so that your fish, koi, or other inhabitants can breathe.

You should try to clean out as much organic debris as possible before the pond ices over and install an aerator, a deicer, or a heater to keep a hole in the ice. Even the smallest of holes will suffice. This allows oxygen in for the fish and plants and also allows any toxins to escape.  Whatever you do, do not crack the ice using a hammer or other device.  This will shock the fish and cause undue stress.

Water Temperature vs. Air Temperature

Water takes a long time to heat or cool compared to the air. This is why it is important for pond owners to go by the water temperature and not air temperature when it comes to caring for your pond. Water temperature is the determinant for seasonal preparation as well as feeding schedules for your fish or koi.

  • At a water temperature of 60°F:
    • Thoroughly remove organic debris from everything.
    • Check power lines for cracks to prevent electrical hazards.
    • Inspect the seal of the outer pump housing for leaks.
    • Check the UVC bulb, which should be replaced annually.
  • At a water temperature of 50°F:
    • Stop feeding your fish.
    • Trim and move hardy lilies to deeper water.
  • At a water temperature of 40°F (before the first frost):
    • Move your frost-protected pump to a plant shelf to prevent lowering the deep-water temperatures and causing undue stress on your fish or koi
    • Store your non frost-protected pumps or anything, such as filters and uv clarifiers, that has glass or plastic inside, in a bucket of water in a frost-free location. This keeps the seals moist and debris residues from hardening.
    • Install an aerator, deicer, or heater.

Modern Technology Defies Freezing Weather 

Winter is the biggest threat to a pond and its’ equipment. In the winter there is ice; ice expands and can burst pipes and filter housings. Be sure to remove all points of the system where pressure can accumulate. Remove filter pads and lids from filters, allow for pressure relief in the system where possible.

The good news for pond enthusiasts: sub-zero temperatures cannot harm the AquaMax Eco Premium pump. It can be turned off but remain frozen in ice and snow without damage!

The following applies for all products that are not frost-proof: safeguard them from winter conditions accordingly! You should take pond pumps and filters out of the pond before the first frost. Store them in a place that will not allow freezing.

Read the original OASE Living Water Article here.