Barbs are energetic fish that school in teams of no less than five and can't be saved with sluggish or weak tank mates as they are often fairly reckless. The Purple Handfish is a weird on the lookout fish that uses its hand-like fins to move throughout the ocean floor. https://aquariumshopinkl.blogspot.com/2025/03/what-is-necessity-of-professional-pond.html