Grass goldfish can be raised together with koi. However, when choosing grass goldfish to be raised with koi, you should pay attention. Most grass goldfish have diseases and bacteria in their bodies. If they are mixed with koi, it is very likely that the koi will be infected with bacteria and become sick. When combining grass goldfish and koi, Grass goldfish should be disinfected before mixed breeding together.

Notes on the mixed culture of grass goldfish and koi

1. When mixed, the fish must be of similar size, so that they can live in peace.

2. Clean them regularly, especially the feces must be thoroughly cleaned and the water should be changed regularly, so that they can live better.

3. The grass goldfish will compete for food. It is recommended that the owner feeds them in batches, and then feeds the koi separately to prevent the koi from chasing the grass goldfish.