Koi can live in ice-covered ponds, but will die if the ice cover lasts too long. To prevent a fish-kill, keep a small percentage of the surface ice-free for gases to naturally enter and leave the water. Also, water temperatures below 65°F (18°C) can stress fish, reducing their resistance to disease. Rapid and extreme fluctuations can also cause disease. Use one or more small heaters with thermostats built for the purpose.
Is it healthy for a koi fish to keep them in a bowl? - Quora
The ideal pond size for keeping koi should hold at least 1,000-gallons of water. The very important thing when planning the size of your pond is the depth of water in it. Koi should be kept in at least 3-foot deep water to help your koi find cooler water in the summer and warmer water when it is cold. One thousand gallons of water should provide enough space for five koi fish, if all water parameters are correct.
Keeping Koi Fish Indoors | Ref-Koi Fish | Pinterest
One of the most important things to keep in mind is the bottom of your pond should not be covered with . Most koi fish enthusiasts use a completely smooth bottom or fine gravel. This is practical because koi spend most of the time at the bottom of the pond when it is cold.
How to Keep Koi Fish - pet-wellness-update
If you are interested in keeping ornamental pond fish and want to keep something slightly more exotic than the humble , the beautiful and attractive koi carp may already have caught your eye.So, if you’re wondering whether koi eat other fish and if it’s safe to keep goldfish and koi carp together, this article will answer all of your questions…