Colochirus crassusDue to variations within species, your item may not look identical to the image provided. Approximate size range may also vary between individual specimen The Pink and Green Sea Cucumber is a colorful filter feeder for home reef aquariums over 100L. Rows of pink knobby thorns run lengthwise along its green and yellow body. Like Sea Apples, striking yellow and pink tentacles extend during feeding. Unlike most other sea cucumbers this animal normally stays stationary, when it finds a suitable location in the aquarium with the proper flow. This species of Sea Cucumber feed by pulling small particulates from the water column, which stick to the hair-like appendages off of its plume. Feed daily with zooplankton or other liquid invertebrate food. Like other Sea Cucumbers, Pentacta anceps has the potential to poison an aquarium. The chances of this happening are very rare unless the animal becomes highly stressed (for example, is accidentally sucked into an uncovered pump intake or overflow boxes). Be sure to acclimate properly and house with appropriate inhabitants. The Pink and Green Sea Cucumber cannot tolerate high nitrate levels or copper-based medications.