I got a Petenia (Red Bay Snook) trio: two females 7" and a male 8"+. Male has developed a bump on its forehead about half inch in size. Bump is the same color as the fish and is little more reddish, like a human bruise. I can see blood vessels inside the bump and it's not symmetrical, it's more to the left of his forehead. All other fish in the tank is fine, no bumps or any signs of sickness.
First time I ever see something like that in my 3+ years in the hobby. Any ideas what it is and how to treat?




First time I ever see something like that in my 3+ years in the hobby. Any ideas what it is and how to treat?



