Just got home and noticed a discolored portion on my flowerhorns tail. Looks like a piece of scotch tape, not fuzzy. Never had any issues with this guy. Only plastic plants as deco and he's eating fine and acting normal. Should I be worried?
Quick photos taken now...


Photo a month ago, notice tail evenly speckled.

Any comments appreciated!
Sent from my iPhone using MonsterAquariaNetwork app
Quick photos taken now...


Photo a month ago, notice tail evenly speckled.

Any comments appreciated!
Sent from my iPhone using MonsterAquariaNetwork app