no i dont know what it was, someone mentioned bacteria so i used bacteria meds and melafix and he started to recover, he never seemed in any pain just fins stuck together, hes had times where he sits and sulks but then he perks up again, either playing with something or looking for a female, hes started making another nest i wonder why hes suddenly so interested! i have female bettas.....do you think i should research breeding the lil guy?