Im new but I need help...
2 year established freshwater tank 130 Gal conditions have been constant we have 9 generations of killiefish breed in our tank.
Pleco missing an eye upon closer examination face around mouth is pink and white with a red ridge, other eye is sunken and can see cloudy white flesh around the eye, fins are frayed, loss of appetite cottony clumps on body
Tiger barbs had white lines along fins, scales missing all have died
Severums cloudy eye with what looks like an ulcer that opened, cotton patches on fins
aussie rainbow scales along body missing, fleash eaten away, mouth cotton, eye missing
iridecent sharks eyes cloudy, pockets and ulcers on eye
tetras cotton on body
striped zebras white patches on side of body
Killiefish white patches no eye disease yet
loaches eye cloudy or ulcered, white cotton on fins
I suspect the cotton is a secondary disease
pH is normal, Amonia is normal,
nitrate is normal
nitrite is spiked critical did
water change added salt temp runs 80 since the tank has been put up. Live plants are in the tank no snails.
I would think pop eye but the pleco acts like it has hole in the head, ulcers on the severum and sharks eyes fins are deterating. Behavior seems to be normal except the pleco is disorientated, lays on its back and jumps out of the water I would suspect because both eyes are affected and were going to remove it from the tank today.
The symptoms match parts of the diseases of pop eye, hole in the head, fish TB, cloud eye, ulcers, fin rot and a few others so I dont know how to treat the tank, we used melafix which seemed to help the eye problems but not fix, the ulcers and cotton continue to be an issue as well as the pleco "hole in the head symptoms"
Help