Winter in north Texas is typically mild except on those rare days when it is not. A few days of temperatures in the teens will shock your fish, hurt your equipment, and create a mess come spring. This article will guide you on how to properly winterize your DFW backyard pond in just a few simple steps.
Proper Dallas Pond Winterization depends on knowing what needs to be done and when and it only requires a few basic actions before the hard freezes begin.
What is Pond Winterization?
Pond Winterization refers to the preparation of the pond and everything in and around it for winter conditions. Essentially it boils down to keeping your pond clean, safe for your fish, and preventing any potential freeze damage to your pumps and pipes.
When Should I Begin in DFW?
Begin once nighttime lows consistently start falling into the lower 50s. Most areas of DFW see this happen in late October through mid November. Do not wait until the freeze warnings come out. The fish and plants need time to adjust themselves
Refer to this checklist to stay on track:
| 60°F or lower | Change to a digestible wheat germ diet |
| 50°F - 60°F | Feed small quantities, once a day at the most |
| 50°F or lower | Stop feeding altogether |
| Before first freeze | Net the pond, clean it, install a de-icer |
Pond Winterizing Step-By-Step List
Removing Leaves and Debris
The leaves that fall into the pond will decompose under water and produce gases. Skim the Sublime Water Garden surface frequently when leaves start falling, and then place netting above your pond. Then clean the bottom of the pond of any sludge.
Prune Plants
Prune your hardy water lilies and marginals once they have turned brown. Prune them down to 2 to 3 inches above their crown. Move your tropical plants indoors or grow them as annuals. Ensure that you prune off any dead leaves so they do not rot in the water.
Change Fish Feedings
The fish cannot digest food when it is cold. Give them wheat germ food in small quantities between 50°F and 60°F, but do not give them any food below 50°F.
Check the Water
Check for ammonia, nitrites, and pH levels before it turns cold. Address any issues at once, since your fish are still quite active. Cold water beneficial bacteria can help balance the water during winter.
Check Your Pump, Filter, and Waterfall
Clean out your filter and rinse the pump. If the pump operates all through the winter season, operate it slowly. If not, drain and put it away inside.
Leave an Opening in the Ice
DFW winters aren’t typically cold enough to freeze the water surface for more than a couple days. An underwater de-icer or custom stonework air stone leaves one place open. This allows poisonous gasses to escape and new oxygen to enter the water.
Are Koi Fish Special During Winter?
Not really. Koi and goldfish become less active and hibernate near the bottom when the temperature drops. For our climate, there’s no need to install a heating system for the pond if it’s deeper than 2 feet; preferably.
Once the fish go dormant, let them be. No need to stir or disturb the water.
What To Do During A Freeze
- A quick freeze will create issues fast. What should be done?
- Switch the waterfall off. Ice will build along the edges and force water above the liner. There is a chance of losing water overnight.
- Check water levels. Fill up with dechlorinated water if levels drop.
- Do not try to smash the ice. Shock will hurt the fish. Warm water poured on the ice will help to create a hole.
- Drain exposed pipes. Water frozen in them might make the pipes burst.
Protection of Your Stones and Edges
There are certain steps that need to be taken in order to protect stone features as well. Check for loose stones and spaces between them near water levels. Expanding water inside the cracks will only widen the crack. Better fix it now before it becomes a problem.
- Winterization Mistakes
- Feeding fish in cold water
- Keeping leaves and sludge in the pond
- Allowing the whole pond to freeze over
- Running waterfall during the freeze
- Waiting until the first freeze to begin
Final Thoughts
This bit of work now will ensure that your pond is healthy throughout winter and looking great for spring. Remove any leaves, reduce feedings, and leave some ice open. For those who require an expert opinion on their ponds before the next freeze,
FAQs
Q1.Is it okay to switch off the pond pump in winter?
It depends. In a deep pond, a low-flow pond pump will aid in keeping the water circulating. However, in a shallow pond or a severe freeze, it would be safer to switch it off. You should then ensure the hole through which gas exchange occurs remains open using a de-icer.
Q2.What is the minimum depth of the pond needed for koi in DFW?
In most cases, a pond that is at least 2 feet deep is enough to accommodate the fish throughout North Texas' winter. If you have a three feet deep pond, you will give them added protection from the deep freezes.
Q3.What time should you stop feeding the koi?
Feed stopping should occur when the water temperature is below 50 degrees Fahrenheit. However, before that, you should provide a readily digestible wheat germ food.
4.Can fishes survive when the pond freezes at the surface?
Yes, provided the pond has sufficient depth and some part remains unfrozen for gaseous exchange. Never crack the ice forcefully.
5.Should I drain my pond during winter?
No. Keep the water level in your pond full. Water is a better conductor of heat than air and you will need it for your fishes.
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