CATDOLL : CATDOLL: Which species of goldfish is easier to raise?

First of all, the depth of your fish tank determines that you can only raise deep-water, pressure-resistant goldfish such as gilt grass goldfish and koi.

Generally, the suitable water depth for Wen and Long species goldfish is below 45CM.

Butterfly tail is only suitable for 25CM water depth

I recommend you to raise the red and white short-tailed gilt fish in a bare tank without adding water plants, stones or bottom sand.