Scientific name - Megathura crenulata\r\n\r\nCommon name – Key Hole Limpet\r\n\r\nMax Size – 3 in (8 cm)\r\n\r\nRange - Eastern Pacific, Indo-Pacific\r\n\r\nCare Level – Easy\r\n\r\nTemperament – Peaceful\r\n\r\nFoods and feeding – The snail will roam the aquarium eating algae \r\n\r\nAquarium suitability –\r\n\r\nReef compatibility – With Caution\r\n\r\nCaptive care – This snail is extremely helpful in keeping an aquarium clean by eating hair algae. If the grain of sand is fine enough, it may venture on the sand bed. There are some reports that it will eat cyanobacteria as well. If there isn’t enough algae in the tank for them to eat, offer dried seaweed. Like all invertebrates it is extremely sensitive to nitrates and copper, and even tiny amounts are lethal to them.