It doesnt look slimmy or fuzzy. It is just a white spot. Its not ick, and doesnt seem like a scrape either.
Hes in a 10 gallon by himself. I do a 25 percent water change every 2 weeks. Filter is fine heater is at 80-82 all the time. Tank fully cycled. Amonia,nitrates etc. is great. No change at all. He eats frozen brine shrimp and hilarki pellets just as all 6 of my others. He is probably the most active boy I have until now. I did get him to take 1 brine shrimp from my finger tonite but that was all. He never hides from me. If I have to do anything in his tank, he is right under me or shall I say in the way. As of yesterday he goes into hiding , not eating,or hes just sitting at the top by his hammock..