Hello,
I noticed some spots on one of my fish while feeding. I Think they are lesions. I have looked at the other 7 fish and only one other had a growth on its eye, the other 6 have no symptoms. All the fish are active and I have not witnessed any rubbing on the pond walls. All of the fish have been only in this pond for over 3 years. The only introduction to the pond has been some water plants and that was over a year ago. I just tested the water quality Nitrate < 20 ppm, nitrite 0 ppm ph ~ 7.5, kh ~ 180, gh ~ 180. The pond is about 1000 gallons. The filtrations is a skimmer, sand filter, and two fiber mat filters, all are 50 gallons. I preform water 50 ~ 100 gallon water changes twice a week.
Any help would be greatly appreciated.
Lesions.pdf
Thank you
Lesions.pdfeye.pdf
Chris