Is my beta fish sick?

Question

My red beta, Flames, is losing all the fins around his neck. You know, the ones they puff out to make him look bigger. I thought he was molting, but when I cleaned his tank today his neck had a small hint of teal on it. He is eating normally and acts fine, but I was wondering if this is some sort of sickness and if I should take him to my vet. Please Help!!!!!!!!

Answer 1

The opercula (gill covers) should not shed.  I would guess you are actually seeing a change in color, which is extremely common in maturing Bettas.  Colors you never knew were there often apear in a matter of days, slowly poking out, and eventually covering large areas of the fish.  I wouldn't be too worried.