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Pond Winterizing Tips

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If you want a clear and healthy pond in spring some proper procedures for a shut down should be followed. Closing your pond properly, for the winter months, is one of the best things you can do for the next pond season. Obviously these procedures do not apply to everyone in the nation, but they do apply to most.

What to do with plants?

Lets start with the plants in your pond. Plants are the number one factor creating decay in your pond and must be dealt with before or right after the first frost. First, remove all foliage from your aquatic plants. Water lily leaves and blooms should be snipped at the container level and discarded. Thereafter, place the containers in the deepest section of your pond. Marginal plants are generally clipped 2″ above the water line. You may want to winterize these plants last, in case the weather suddenly warms and causes them to grow. This will eliminate the need to cut them again. Surface plants should to be removed and discarded. Most are tropical in nature and will not make it through the winter months. Submerged or oxygenating plants can survive under certain conditions. Usually the deeper your pond the more likely they will survive. Lastly, remove foliage and debris thoroughly from the plants. Leaving this debris in your pond will foul it and create more work for you in the spring.

On the fish

Koi and goldfish are cold weather fish. Without going into a lot of detail, their metabolism will slow as the water gets colder, making them inactive. One grave mistake is to feed or otherwise bother them when the water turns cold. The fish do not need your help or food during the winter months. One thing you can do for them prior to the cold weather, is give them a clean environment in which to live. Also placing 2′ sections of 4″ PVC pipe will give them a place to winter over. Drill a hole in each end and tie a short piece of fishing line with heavy weight to the pipe. This will keep it on the bottom and in place. You may also want to use a product that will place a slime coating back on the fish. Using pond salt will also help. I recommend our Heals-All, which contains a double slime coat as well as Vitamin B-12 to heal any wounds or cuts the fish may have in preparation for winter. If you live in an area where the pond will be covered over by ice, then it may be necessary to install a pond de-icer. See Equipment section below.

Chemicals and treatments:

Treating your pond with the proper additives will greatly increase your chances of a clear, clean and healthy pond for the spring. Nitrifying bacteria is what keeps the pond clean. This is the good bacteria in your pond. Problem is, that when the temperature dips near 55degrees, it dies. One way to have this bacteria active most of the time is to use a product like our Fall and Winter Formulation that will continue to provide sustained biological activity in water temperatures under 55 degrees. It also maintains a healthy immune system for fish. Even if frozen the bacteria will remain effective after thawing out. It also helps to jump-start your pond to a healthier environment in the spring. You can see this product and others by clicking the links at the top of this page.

Pond cover

Covering your pond is very important and performed after you have done the procedures above. BE SURE that you have netted out all the debris and scum from the bottom of the pond. Get as much as you can, as this will make the difference in water quality and clarity in spring. The most obvious way to cover your pond is with nylon pond netting. This netting is strong and will not rot or decay, making it the choice of pond owners everywhere. This netting is extremely important in keeping out the leaves and trash the eventually ends up in everyone’s yard. The netting is stretched tightly across the pond and anchored with plastic stakes or rock. One good idea is to place a floating object in the pond to make the netting take on a tent like appearance instead of eventually ending up lying in the water. You can also use foam, beach balls, even the blow up rubber toys used in pools. Either way, get the netting raised up above the surface.

Pond winterizing equipment

There are differing opinions on what to do with the equipment that filters, pumps and sterilizes your pond. One thing we know for sure, if you have fish, don’t leave the pump running to power your waterfall or other feature. Your fish just don’t want to be messed with in any way shape or form. They don’t need the added oxygenated water in the winter months. Anyway, by keeping pumps or waterfalls going in winter it disturbs the warmer water at the bottom and makes it colder, which can be deadly to hibernating fish. Many products are on the market that will keep an open hole in a frozen pond. Without this hole allowing trapped gases to escape, fish will suffocate and die. The best defense is a simple thermostatically controlled pond deicer that comes on at a certain temp and off at a certain temp, protecting your investment.

Last strokes

Take this part of your pond maintenance seriously this winter. It is a very important part of the eco-system of the pond. If you use the procedures above, you will find that your spring maintenance will be significantly reduced giving you more time to enjoy the awakening pond life.

Category: Ponds

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  1. You should be kind and add one!