Amano Shrimp, Bamboo Shrimp, Cherry Shrimp, Tiger Shrimp, Wood Shrimp, Apple Snails, Ramshorn Snails, Malaysian Trumpet Snails, Pond Snails, Red Claw Crabs, Fiddler Crabs (note: crabs need dry land and are escape artists), some of the smaller species of Crayfish and Scuds.