Peppermint Shrimp (Lysmata wurdemanni), tend to be one of the popular species of shrimp common on Clean-Up Crews and are native to Caribbean waters. They only grow to about 2 inches but with their skinny legs and small claws they are able to reach hard to get places helping to keep aquariums free of detritus, food waste, and decomposing matter. They are commonly added to saltwater tanks to help combat pesky Aiptasia (Aiptasia pallida), but it should be noted that they are reef safe with caution as they can also harass anemones and corals. These shrimp are nocturnal and it is common to see them hanging upside down underneath overhanging rocks or in other darkened areas of the tank. If they run out of food sources, they will often come out at feeding time. Iodine is an important element for shrimp as it plays a role in helping them to have successful molts, so make sure to test and dose accordingly. They can be sensitive to poor water quality and do not tolerate copper or copper based medications. Prior to placing them in the marine aquarium, make sure to drip acclimate them.