jpunk9

One of my balas has a red tinit on his back fin. At the base of the fin there is a little dot that is red. His tail has a split in it but it always had. He is swimming around but not like he used to. I tested the water and my amonia is 0. my nitrite is 0. I have been reading diffrent sites and it seems like it could be fin rot or BACTERIAL HEMORRHAGIC SEPTICEMIA. So my question is, has this ever happened to any of your fish? What can i do to help my bala? Have any idea what this could be? Help please. Thank you in advance.
I couldnt get pictures but i will try.

Chief_waterchanger

What size tank, how many of what kinds of cohabitators are in the tank. Have you recently added chemicals to the tank? Did you change something about the tank recently, assuming it was a tank that has been setup for a while?

Did you cycle the tank? If you did not cycle the tank you probably have an infected fish on your hands, in which case you should do increased waterchanges (50% bi-daily) and monitor the condition closely.

jpunk9

I have a 50 gallon, I thought it was 40. I have 3 balas, 5 barbs, 6 danios, and a catfish. I have added one peice of new scenery but washed it really well. I have not added any chemicals. I am vacuming the gravel and doing a water change today. Hope that helps.

Stradius011

Your tank is overstocked.