A typical kreisel tank housing several moon jellyfish A kreisel tank (kreisel becoming German for "spinning major" or "gyroscope") can be an aquarium formed like a horizontal cylinder that is created to maintain delicate animals like jellyfish and newborn seahorses. These aquariums supply gradual, circular water circulation with a bare http://localslisted.com/directory/listingdisplay.aspx?lid=27123