Dwarf fish including Guppies and Danios, Corydora catfish, pigmy suckermouths, groups of barbs or tetras Plecostomus catfish, or just plecos for brief, are a big team of South American Catfish that dangle out on The underside of lakes and rivers and graze on rocks and driftwood. Plecos are wonderful algae https://pearlaquatics.my/product-category/led-light-lamp/