Synirr
"No one is a failure unless you try"
I'm very worried about my oscar... he's getting little pits on his head and it looks exactly like HIH to me. How does one treat this disease?? I seriously doubt water quality could be the problem, since I do weekly 25% water changes and the tank is appropriately filtered, if not overfiltered. The water readings are perfect. He's 8" and sharing an 80 gallon with a 5" midas hybrid (and yes, surprisingly, they get along fine.) He's my favourite fish and I hate to see him ill... what can I do for him?
I found a website which said carbon dust may contribute to the development of HIH in some fish, and since I just added carbon to my filter a few weeks ago, this seems like it may be the case. I'd definitely like to hear some more opinions, though. Help!!

I found a website which said carbon dust may contribute to the development of HIH in some fish, and since I just added carbon to my filter a few weeks ago, this seems like it may be the case. I'd definitely like to hear some more opinions, though. Help!!