Male betta fish turning black at the end of back fin, and little blue b/t ventral fin?!?!?

Question

hey everyone :D

my male betta fish is growing a LITTLE black(right after the red) at the end of the fins of his back fins and a blue of a bright blue in b/t his ventral or where he craps out of. WHY IS THIS HAPPENING TO HIM ?!? is he changing colors or something?

Answer 1

im pretty sure nothing is wrong, it might just be your food, some bring out there colors, it happens with my fish to. just dont worry =)

Answer 2

Your fish has a chemical/ammonia burn. What this means is that the fish was exposed to too much ammonia, nitrates, and/or chlorine in the tank. The black on him is actually very good. This means he is healing himself. Think of it as a bruise on a human. You should just do a 25-50% water change and use the requested amount of conditioner. Repeat this process the next day, then just wait. It should clear up by a week max. Just continue this process every 1 1/2- 2 weeks and your betta will have a much less chance of getting ammonia burn.

Good luck! Please email for more questions. I can tell you much more in email.