Help with Monster Catfish!

[WarrendaFish]

I have a 3' RTC/TSN hybrid. He is in a 300 gal pond by himself. It has a 6'x8' foot print approx... His wiskers are showing of signs of deterioration and it looks like a thumb-size wound on his side... I have recently done 2 55% water changes an added a little melafix... Any help would be greatly appreciated. Thanks

 

[redtailcatfreak]

wait its 300 gallons and the foot print is 6x8? How deep is it. My 6x3 is 2 1/2 feet deep and is 330 gallons.

It could be a bacteria infection. Id keep up the water changes and add some Aquarium Salt. Whats your temp at?

 

[WarrendaFish]

The temp is low. About 75F right now. I had the covers off to clean.. I have put them back on and will add some more salt... The foot print is big.. I'm not sure of the gallons but it's 8'x6' and about 2' tall maybe a little less. I will do parameter checks tonight

 

[WarrendaFish]

Ammonia 0
Ph 7
Nitrite 0

 

[redtailcatfreak]

Id try raising the temp to around 80. Was it damaged by another fish or did it slam into something in the tank that would have left a wound?

 

[Kodiakbr]

maybe it hit the white PVC return/supply line in the pond when it got scared or something maybe put a T or something on the end could be sharp from the cut or even from the factory I have cut my hand cleaning off the ends at work just a thought.