Dwarf fish including Guppies and Danios, Corydora catfish, pigmy suckermouths, groups of barbs or tetras Plecostomus catfish, or merely plecos for short, are a substantial team of South American Catfish that hang out on The underside of lakes and rivers and graze on rocks and driftwood. Plecos are excellent algae https://pearlaquatics.my/product/sobo4x2x2/