The Peppermint Shrimp is found in the Caribbean and along the Atlantic Ocean.  What's important about getting an Atlantic shrimp over a Pacific is that only the Atlantic is effective at erradicating the unwanted Aiptasia Anemone in your aquarium.  The Pacific won't do this!

This attractive shrimp is named for the red stripes running the length of its cream-colored body. It grows to a maximum size of 2 inches which is about the size you will recieve. The Peppermint shrimp serves two important functions in a reef system. It is a cleaner shrimp, meaning it cleans the parasites off its tankmates. The Peppermint Shrimp is a scavenger; eating Aiptasia, sifting sand for food and promoting a healthier aquarium.

The Peppermint Shrimp is famous for eating the nuisance aptaisia anemone. In a reef system, the shrimp can control the spread of aptaisia by eating the small, developing anemones. This shrimp will not eat corals. During the day the shrimp will generally hide in live rock and come out at night to forage for food. The Peppermint Shrimp is non-aggressive with fish and other invertebrates, and groups of them can cohabitate peacefully in the same reef aquarium.It is not uncommon for peppermint shrimp to spawn when kept in groups of 2 or more. The newly hatched shrimp larvae are great food for corals and small fish.