Pederson Cleaner Shrimp - Ancylomenes pedersoni

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The Pederson's Cleaner Shrimp is closely related to both the "cleaner shrimps" and the "anemone shrimps" in care and behavior. They are slender shrimp with almost completely transparent bodies and purple markings on their claws, body and tail.

Shrimp molt their hard outer skeleton to grow and it is not unusual to find an empty molt in an aquarium with shrimp. Shrimp also can molt under environmental stress such as water changes, rapid changes in conditions or during shipping. Always acclimate shrimp slowly to avoid sudden changes in their environment.

Crustaceans benefit from iodine and mineral supplements to help form a healthy, hard exoskeleton. Regular water changes with high quality salt mixes usually provide enough, but extra supplements may be needed in reef tanks or in tanks with heavy invertebrates loads that use up iodine and other minerals rapidly. If water changes with new, fresh saltwater are not done regularly, the minerals also get depleted and nitrates accumulate and can also be detrimental to crustaceans and other invertebrates.