I have all the upgrades, and plants and sea horse. The fish are still getting sick even with the plants and the magic fish of curing. They are still getting hurngry with the magic fish of substance. I havent any idea what the sea horse is for and I would like to know. Also what is the special chemical suppose to do, I have used it twice and nothing has happemed. Does any one have any ideas what the sea horse and magic chemicals are for? Thank you