Black eyes....Help!

[sumi84]

I have about 10, 3" discus in 30 gallon tank and recently i noticed that some of them having black color eyes and some black spots on the fins.
But they don't show any other symptoms and consume food as usual.
Please help me to get rid of the black coloration in their eyes.

[Don Trinko]

I'm just guessing so don't go entirely by what I think. the black eyes could be an internal bacterial infection. I had this on one fish. Erythromycin worked in my case. Don T.

[sumi84]

I'm just guessing so don't go entirely by what I think. the black eyes could be an internal bacterial infection. I had this on one fish. Erythromycin worked in my case. Don T.

Thanks for the reply, Could you please tell me what is the dosage for the erythromycin treatment.
Tc