At least 1 meter fish tank should be used to raise koi fish. Koi is a large fish and belongs to large ornamental fish, so it has certain requirements for space. Moreover, it consumes a lot of oxygen, so it is necessary to keep oxygenation to avoid fish floating head due to lack of oxygen. In the daily feeding process, there are many foods that can be fed, but it is best to choose animal feed, so that fish can grow fast.
2. What are the disadvantages of raising koi in a small fish tank1. Influence on development: The biggest problem of raising koi in a small fish tank is its influence on development. Because koi fish can grow to more than 1 meter, too small a tank limits its growth, resulting in its small growth. Fish that don't grow up look unsightly, and even become old fish after a long time.
2, can't move: Because the fish tank is relatively small, koi fish can't move. If it doesn't swim for a long time, it will cause the fish to get fat and even reduce its resistance. Moreover, if the fish can only float in the fish tank, it will not look energetic, and the overall ornamental value will be greatly reduced.
3, easy to get sick: If the fish tank is too small, it will hold less water. As a result, the water quality is not easy to maintain, and once the water quality deteriorates, koi fish will get sick. However, there will be no such trouble in raising fish in large fish tanks. The water can be maintained and the fish can grow healthily.