I noticed some light patches on one of my CPDs. The fish acts normal. The patches are only on one side. There are many other CPDs and other fish in the tank with no issues. Has anyone seen anything like this before. Is this a fungus or bacterial infection? How should I treat it?
I treated the whole tank with the Med-Trio about a month ago and have not added anything to it since then.
pH 7.8
Nitrates 30-40
Hardness 120
Nitrite 0
Ammonia 0
KH/Buffer 120
Water Temperature 77-78
I have added a couple of pictures and I tried to get some video.