Medusea, your online store for jellyfish and jellyfish tanks and more Medusea is your online store specialized in live jellyfish, jellyfish aquariums, and everything necessary for the care of these fascinating animals. If aquarium keeping is your hobby, or if you want to delve into the world of jellyfish, choose MEDUSEA. We share your passion and want to help you by offering advice before and after your purchase, so that you always feel supported. We have a wide variety of jellyfish species and jellyfish tanks, which, thanks to their elegant design, will become part of the decoration of your home, office, or business, creating an exclusive and original atmosphere in that space.