Dwarf fish like Guppies and Danios, Corydora catfish, pigmy suckermouths, teams of barbs or tetras Plecostomus catfish, or merely plecos for brief, are a considerable group of South American Catfish that dangle out on The underside of lakes and rivers and graze on rocks and driftwood. Plecos are great algae https://pearlaquatics.my/product/sobo4x2x3/