Hi there I am new to the marine setup. Being doing tropical for years. Wanted to say thanks for the site and all the helpful info, i have been using it for the last couple of months to help setup my tank. My tank is now setup and all seems good, i currently have a 350 litre tank with 21 Kilo's live rock. 1 Clown fish, 2 tube worms and 2 hermit crabs. All has been running well for a while now. However i got a firecracker shrimp last week and he seemed to be fine for a day or 2 then got home and found the crab muching away at him. I checked the tanks ph, ammonia, nitrites etc and all seemed what it should be. I am sure he made the trip ok and i took a long time slowly acclimatizing him. Is there something i missed. Well i am sure i will be doing lots of posting on the site, as there is just so much to learn and discover.