Thanks to all the helpful forums here and other sites, I succeeded in keeping a nem, 5 fish, Benny the shrimp and Ogly the urchin alive over the last 5 weeks just by googling and reading a lot of posts all around the world. So thankful, this is the coolest hobby! I especially love my nem. Its so happy after I feed it (yes, sparingly, small pieces of shrimp). Just wanted to share!