Shrimp, Crabs and Crayfish
Dedicated to freshwater decapods. Contains pictures of and information about individual species of shrimp, crab, crayfish, and lobster.

Caridina japonica
Comprehensive information about Caridina japonica in aquaria.

Freshwater Molluscan Shells
A site with classification information and many pictures to aid in identification.

Crustacea
Care, natural history, and photos of freshwater crustaceans including shrimp, crayfish, and crabs.

Red Claw Crab Care
One aquarist's advice on care for Sesarma bidens, the Red Claw Crab.

Robyn's Mollusk Page
Information regarding the care and biologiy of snails and clams in the freshwater aquarium, including profiles of several snail species.