Possible fin rot on Betta - advice?

[shuga]

Betta Fix should cure it. It's not too expensive and it worked for me every time i used it. i used to work in a pet store and every time we got a sick beta in, they would let them die, so i started taking them home and healing them, at one point i had 27 betas.

also, i used Stress Coat to treat the water, its better for fish and not as harsh as other treaters. good luck.