Mussels are filter feeders that filter microscopic aquatic life, such as plankton, from the water around them. The larvae of some mussel species are temporarily parasitic. More »

Fresh water crawdads are considered omnivores, which means that they eat both animals and plants. They are opportunistic creatures and eat whatever happens to float by. More »

The diet of a freshwater shrimp depends on the species, as the different species have different feeding requirements. Generally, shrimp are scavengers and eat nearly anything. More »

The diet of the oarfish consists of plankton, small crustaceans and small squid that they are able to strain from the water. These fish have a small mouth with no visible teeth, so they strain their food through a specia... More »

Stingrays are carnivores that eat shrimp, clams, oysters, mussels, snails, small fish and crabs. They have strong jaws that they use to crush their prey. More »

www.reference.com Pets & Animals Marine Life

Oysters eat plankton, algae and small food particles that wash over their gills. Both oysters and clams use the same type of siphoning and straining system to remove food from the water around them. More »

Prawns are omnivorous, and in the wild they eat a variety of food, including plankton, carrion and other microorganisms. Their diet also consists of detritus, or fragments of decaying organic matter, small shellfish and ... More »