In this game I am trying to solve that puzzle with all the snails and things. I have determined that snail, nudibranch and clam are the closest match and I am lining that up from outer to inner ring. That means that starfish, urchin, cucumber and hydra go in the next three spaces then hydra, jellyfish and sea anemone last. Problem is, nothing happens when I do this...HELP
You're right, this is a tough one but you're solution is the right one! Are you sure you use the hatch afterwards?