Artemia Sea is an aquatic metaroom created for Creatures 3/Docking Station by Grendel Man and Mea.
It is based upon the tank from the Amazing Virtual Sea-Monkeys. Apart from sharing some critters and plants, however, it is not an explicit Sea-Monkeys themed metaroom. It is tailored to the needs of the general swimming creature, and has everything they might need for nutrition and entertainment.
The flora and fauna is mostly a mix of Creatures 2 and Amazing Virtual Sea-Monkeys, although there is one Creatures critter and a few critters and plants unique to Artemia Sea as well.
It was released for the CCSF 2014, and is available for download at The Realm.