I'm wondering if plecos will eat the poop of other fish, specifically Molly fish. I've heard they eat algae growing on the aquarium walls but I don't know about what else their diet may include.
I'm very new with aquariums.
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Sign up to join this communityI don't think they will try to eat fish poop unless they're starving. They are great at eating algae off glass and (smooth) rocks and wood though. I would definitely get some sinking tablet or pellet type food for them just to make sure something gets to the bottom, past the mollies.
A pleco would also probably love you for throwing in some frozen bloodworms.