Catfish fins getting slightly tattered

I have a leiarius pictus catfish (1') and a pleco (9") in a 150 gallon tank atm. I also have a few rosies/guppies swimming around in the tank.

I just moved the fish back into the tank about a week ago (since i just moved) but am noticing small tatters on the ends of the fins of my pictus cat.

The pleco is fairly new to the tank, but outside of them nudging each other out of the way for good hiding spots, they dont seem to fight at all.

Could the pleco be doing this? The guppies never bothered my cat before. Or is this stress from moving (a week ago?)? Not sure what to do here any suggestions would be appreciated.

pH and ammonia levels are nominal

I have a 30 day ammonia, nitrate, and nitrite tester pack in the tank at all times, and everything shows up as good.

When I moved i kept my canisters hooked up and running into tupperware containers where i kept the fish. At one point maybe the canisters (while still full of water) didnt actually run for maybe 2-3 hours tops... but thats it.