Previously used shrimp cuisine and recently got crab cuisine. Shrimp love both but you get a lot more of the crab cuisine for your money both high in calcium.
Shrimp cuisine is higher in veggie matter which is better for the shrimp.
You can feed crab cuisine but i'd do so sparingly.
In the wild, most species of shrimp are primarily herbivorous but do get small quantities of meaty food.