My Betta's tail fin has split in two nearly down to the base of the tail. Is this a cause for concern? I don't know what could have caused it. Its a bare tank (for treatment) with only a silk plant which I've sinced removed.
Tail splits will usually heal in clean water, my boy Sam split his tail down the middle to the base when spawning and it has healed right up! sometimes it wont heal up back to its original appearance but dont panic he will be ok. I do wonder how he could have done it though!