Physical 

Grass shrimp are commonly two colors; bright green or dark brown. Their abdomen is bent at a sharp angle, and maximum size is less then 1 inch. Females are usually larger than males.

Image by Brian.gratwicke from Wikimedia

Habitat

H. species live in eelgrass beds and on submerged algae. They range from New Jersey to the Gulf of Mexico.

 

Feeding 

Grass shrimp are omnivorous scavengers, and feed primarily on small bits of vegetation as well as amphipods and other macro invertebrates.