I have recently noticed my Plec has white scratch like marks on his belly. What are they? Are they literally scratches or is it something more serious?
Nothing different to the normal ornaments that have been in there before. Unless he has tried to get in somewhere that was too small for him. He seems OK in himself.
Other tank mates are 2 Cory's, a catfish then the rest are mid or top water swimmers like mollies etc.