The Blue Spotted Sea Hare, Dolabella sp., also known as the Wedge Sea Hare, is one of the best algae-eaters in the home aquarium. The Blue Spotted Sea Hare can clean an entire 125 gallon reef tank of all hair algae in about two weeks - they are quite the efficient janitors. They are rather sensitive to pH and salinity changes and can take a little while to fully acclimate to a new tank (they should be drip acclimated). Featuring a dulled grey/brown color with muted blue spots and soft spiky appendages, the Blue Spotted Sea Hare makes for an interesting invert.