Plecos aren't the most colorful, but they’re helpful fish to have because they feed on the algae on the sides and bottom of your tank. That’s right, you read that correctly. Plecos help you clean your tank. You’re welcome.
They’re peaceful fish that keep to themselves, but they do feel more comfortable if they have a cave or heavily planted area where they can hide out. Although they tend to fill up on the fish’s leftovers, you may need to drop in an algae wafer every now and then to supplement their diet.