1. Hermit crab eats 2. Limpet may be eaten by 3. Algae may be eaten by 4. Sea urchin eats 5. Chitons and limpets may be eaten by Salt marsh grasses algae sea urchins marine snail small crab tube worms fiddlers green crabs phytoplankton lichens cyanobacteria mollusk anemone fish shellfish sand fleas diatoms fungi bacteria detritus feeders seaweeds
