JohnnySLC

Thanks for the info. I'm setting up a quarantine/hospital tank so I can treat it

I'm new to aquariums and new to this forum and let me just say how hard it is to get clear pictures of fish that won't hold still. I think I now have 40 blurry pictures of this fish. OK, this guppy just started showing some irregular white discoloration yesterday and it seems to be getting worse. I can't tell if it's something growing on the scales or not but you can judge from the pictures. Any help would be appreciated. Nitrate - 0-20 Nitrite - 0 Hardness - 300+ Chlorine - 0 Alkalinity - 180 Ph - ~7.2 Temperature - 76