A good thing about keeping a Powdered Blue Dwarf Gourami is that it'll often hunt and take in freshwater snails. It’s a superb dwarf fish for trying to keep aquatic snail infestations in modest aquarium tanks under control. They get their title from their fins, reminiscent of a hippopotamus’s ears. https://www.slideserve.com/aquariumshops/4-facts-about-maintaining-your-aquarium-by-a-fish-tank-cleaner