The breeding techniques of goldfish! There will be no harm to goldfish! #fish #koi #fishing

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

Pearl goldfish! Is there anyone who likes it? #fish #koi #aquarium

The young goldfish fry are very robust and vibrant! #fish #koi #freshwater #aquarium

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

Goldfish eat very well! It can't swim anymore! #fish #koi #fishing

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

Let's take a look at the quality of goldfish and how to raise them? #goldfish #koi #aquarium