Came home from a weekend away only to find that my male
betta had passed away. What was weird is that he could've only been dead for 24 hours at most (my roomie was here watching him), since he was alive last night. He was literally falling apart when I got there, and I'm not at all sure what might have killed him.
Water parameters are good,
pH is higher than normal, but I just changed the water (partial change).
I'm concerned because none of the fish he was living with are ill at all... could this be a bacterial infection?