MY MALE BETTA IS FRIENDLY AND HEALTHY IN HIS 200 LITRE COMMUNITY TANK (with no other male bettas by the way) and last night he was fine, ive just returned from work and hes at the top of the tank not moving much and he seems to have no fins left they look like theyve dropped off, i think maybe fin rot but not sure,
please any help and advice is great!
what could it be and why has it happened within the space of 12 hours???
many regards folks, dave