Common Pleco - Hypostomus plecostomus

The Common Pleco, sometimes called the Armored Catfish or simply 'suckerfish,' is a ubiquitous species of algae eater that likely anyone with even a passing interest in aquariums has heard of or seen. They're often recommended for their unequaled ability to destroy algae in aquariums by rasping away at it with their rough sucker shaped mouths. Their undersides are flattened to aid in sticking to flat surfaces, while their backs are covered in heavy overlapping armored scales for protection. They're generally a mottled brown in color, and will extend their large dorsal fin when alarmed.           

Care

Common Plecos, other than eating algae, are primarily known for being extremely hardy, and for growing VERY large. Many beginner aquarists purchase them for algae control in smaller tanks, not realizing these fish will grow to over a foot long surprisingly quickly in the right conditions. As they grow larger, they also become territorial, and may attack more docile tank mates. Longterm, they're best kept with other large, semi-aggressive species.  

Diet

Common Plecos have a voracious appetite for vegetation that often cannot be satisfied by the algae in the average aquarium. It's recommended to supplement with algae wafers or zucchini slices.