albino channel catfish

Question
THANKS FOR TAKING THE TIME  I'VE HAD AN ALBINO CHANNEL CATFISH FOR SOME TIME NOW ABOUT 4 YEARS HE IS ABOUT TWENTY INCHES LONG I'VE BEEN FEEDING HIM OMEGA FLAKES AND EVERY NOW AND THEN I FEED HIM FEEDER FISH HE IS IN A 125 GALLON TANK ALONG WITH OTHER FISH LIKE A BLACKBELT, A PLECO {ABOUT 10'IN LONG}, AND A SMALL PLECO ...I FED HIM FEEDER FISH ABOUT A MONTH AGO AND HE WAS FINE , AROUND TWO WEEKS AGO HE STARTED ACTING LIKE HE WAS BLIND NOW HE KEEPS SWIRLING INSIDE THE TANK UNTIL HE GET'S TIRED THEN HE'LL SIT THERE AND DO THE SAME THING AGAIN I'VE BEEN CHANGING THE WATER WEEKLY AND I BEEN CHEKING THE WATER DAILY BUT I'CAN'T SEE HIM GETTING ANY BETTER IN FACT HE IS STARTING TO BEND KIND OF LIKE AN S SHAPE ...ALL THE OTHER FISHES ARE FINE I DON'T WANT HIM TO DIE I REALLY WOULD LIKE YOUR HELP I'VE DONE JUST ABOUT EVERYTHING THERE IS TO MY KNOWLEDGE BUT I'VE FAILE LOOKS LIKE... I'VE TRYED THE MELA FIX ,,I'VE TRYED THE ICK AND NOTHING SEEM TO BE WORKING IF YOU CAN HELP ME PLEASE I'LL BE VERY THANKFULL OF YOU ... THANK YOU IN TAKING THE TIME HOPE TO HEAR FROM YOU SOON

Answer
Richard,                                                               Try some coppersafe he may have a parasite from how it sounds. He may also have ingested some of the substrate while trying to get enough food from the flake. Are you sure he hasn't eaten the smaller pleco, the barbs on him would definitely injure him internally. Anyway coppersafe stays in your water for 30 days. 1 tsp per 4 gal. You do not have to take your carbon out if it is more than 3 days old. If you must do a water change before 30 days just replace as necessary. I hope he gets better.... Good Luck,Tina