There are two types of peacock cichlid.
One being the one from lake malawi, which requires a rift lake set-up (hard, alkaline water) which can really only house other rift lake cichlids and synodontis cats. The other is the peacock bass which grows huge and eats everything big enough to fit in its mouth.
Please google search this to clarify why one you have.
I also think it's more likely to be the bad water quality causing the wounds.. parrot cichlids have very odd-shaped mouths due to messed up genetics from hybridisation and can't really do any "biting".. As Newman said, plecos are scavengers rather tha active hunters and will generally only latch on to weak, ill and lethargic fish.
One being the one from lake malawi, which requires a rift lake set-up (hard, alkaline water) which can really only house other rift lake cichlids and synodontis cats. The other is the peacock bass which grows huge and eats everything big enough to fit in its mouth.
Please google search this to clarify why one you have.
I also think it's more likely to be the bad water quality causing the wounds.. parrot cichlids have very odd-shaped mouths due to messed up genetics from hybridisation and can't really do any "biting".. As Newman said, plecos are scavengers rather tha active hunters and will generally only latch on to weak, ill and lethargic fish.