Change the water in the fish pond! Goldfish during their breeding season are very dirty! #fish #koi

This is the gonad of the female fish in the breeding period #fishing #koi #fish

The female fish has spawned! A complete water change is necessary to maintain clear water! #goldfish

The dead goldfish can only be buried and disposed of! #koi #aquarium #fish

The goldfish that was supposed to be eliminated! I gave it to my neighbor #koi #aquarium

The short tailed oranda goldfish looks great from above! #fish #koi #fishing