How To Care For Koi Fish Outside. If you are underfeeding your koi watch for frequent weak or deceased fish. Cover the aquarium with a hood to reduce evaporation and splashing and to keep fish from leaping out.
Sometimes larger koi will eat smaller ones. Keep mature koi in an outdoor pond of at least 3 feet deep with at least 50 gallons of water per fish. Koi Fish Care Tips.
A number of your koi will be eliminated naturally.
However they are not your average aquarium fish. We offer a wide range of pond services from koi fish emergency life support to aquatic plant maintenance to even building a custom-designed. One for breeding and an additional hospital tank. Koi Fish Care Tips.