How to Keep Jellyfish in Aquariums: An Introductory Guide for Maintaining Healthy Jellies Many people want to learn how to keep and grow jellyfish in aquariums, but don't know where to start. Though the scientific literature contains clues, the language can be cryptic for the uninitiated, and the references can be tricky to track down without access to a well-stocked university library. In this first-of-its-kind guide, C. Widmer presents in plain language some proven methods for jellyfish husbandry. With some study, attention to detail, and a little pioneer spirit, you'll soon be enjoying your own jellies, along with your newfound jelly-keeping skills.