Common goldfish are the cheapest goldfish and boy do they get the largest! These guys are like mini koi, prepare for some serious size if you’re keeping one long-term. #fish #goldfish #aquarium

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

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