HI I have a gold Barb a pleco and a little black striped red finned tiny fish sorry forgot the correct name however my gold Barb pics on the pleco when he gets near the decorations that he likes do I need to worry?
Barbs can get nippy and sounds like it’s territorial. I’d just keep watch and see how close he gets to the plecos fins. Is he nipping or just chasing? That sort of thing. If it’s nipping then I’d be more concerned for sure, you don’t want fish biting off bits of others tails/fins. Either way, watch the plecos behavior too for stress.