Hello, I have 2 German balloon rams in my tank, one recently became sick. A few days ago, I noticed his eye had a white cloudy fungus on it, that is what I thought and what my LFS said. He advices me to do a 30% PWC with R/O water(I was using tap water before) to lower my KH and GH. I did this my CH has dropped from 20 to 12 in the last 3 days, my fish's fungus is almost not noticable now, however the fish is very inactive and will not eat(not even brine shrimp) I tested my water and found this: Ammonia-0 NitrIte-0 Nitrate-15 PH 8.0(was 8.2) GH-0 CH-12 Temp- 83.1 When I got home, my ram was vertical in the water(mouth pointing towards the top of the tank, floating on a leaf mid tank, the leaf moved and he sank to the bottom where he just sits. His color is very poor, and I can see a little bit of fungus on him, however his eye is still almost popping out of his head. Should I try another PWC? medication? what do you guys think? Please let me know if I missed anything, I think I covered it all but could be wrong! Edit: Posted a picture of him 3 days ago, when I did my PWC. Yes, he is in a net, but it was only so I could get a good picture of him, he was hiding all the time.