

Splotches on scales?
I’ve had Floki since march. He’s in a planted 10 gallon with a nerite snail. Water parameters: Ph stable at 8, Ammonia 0, Nitrite 0, Nitrate 10.
Temp is usually cooler, 78-79f, but it’s been warm so getting up to 81-82 max during the day and then falling again at night. Been doing extra water changes in my tanks and adding ice (filtered well water that does not have chlorine).
Idk what it is, assuming some kind of bacteria due to the higher temperature? Any advise?
Ps he’s acting and eating normally.