Fish Turning Red. Stopped Eating

[Soaup]

I have a 125 gallon tank with a florida gar, Oscar, and albino channel catfish. The fish are massive. Well today i take a look at the tank.. The catfish is sitting on the floor as is the oscar. This is not unusual for the oscar but the catfish is always moving. I tried to get them moving again with some food. Neither of them had a bite to eat. I feed them cichlid pellets, they eat feeders when i feed the gar. Upon closer inspection under the cat's side fin it appears to be bleeding but its not bleeding. Its a red irritation almost like a blister. The gar looks to be shedding his skin its most likely a fungus but not patchy its sparatic unlike any others i have seen. The gar eats only feeders. I dont know what to do and have not run any tests.. From the symptoms listed would anyone be able to tell me whats wrong.

 

[Soaup]

please help its not looking good.. Anyone?

 

[The-Wolf]

without any water parameters
I'm thinking you have the start of a systemic bacterial infection
proberbly introduced by one of the "feeders"

unfortunatly the prognosis for SBI is around 80% mortality.

you first course of action should be a 50% water change
followed by a few 20% ones over the comming days.

 

[Soaup]

I will have the water parameters soon. I am going to the pet store today to find out if i can do much else. Thanks.

 

[WILDER]

I would recommend a water change like wolf mentioned, need to get water stats done quick as well, can you issolate the fish, it does sound bacterial, i would try and get a med like tetracycline if you can issolate, if not maracyn one and two.