Can Bettas Change Colors??

[okiemavis]

There definitely are, but usually they become paler and duller- not change from green to purple or something. If they are becoming a vibrant color I wouldn't ever think it was something to worry about.

[fishygal852]

Fish change color when a water change occurs and there is a temperature change um....and when it's sick and sometimes if scared

[crazy4fish]

oh ok... i thought you were saying that there were sicknesses that could make my fish blue or green. lol!

[tenpaull]

haha not really, but some "hidden genes" of a betta may come out during intense stress(disease). My cherry red VT became permanently copper after recovering from Ich ;)