I started my first reef tank 5 weeks ago! I've been researching and learning a lot about reefing. My tank is a 29 gallon with live rocks, live sand, a canister filter, a skimmer, a power head, a heater, and T5 lights. I went all out and got the nicest stuff i could. I waited and tested my water and it was good for about a week, so i decided to get a fish. I got a juvenile ocellaris clown. I acclimated him to the water with a drip line and put him in. Almost immediately i thought something might have been wrong with him. I got the food he ate at the store and feed him 1 large flake a night. by the third night i got worried about him because he was twitching. Because this is my first fish I didn't know if this was normal behaviour or not. I tested my levels again and everything was perfect. I decided to keep observing him and see what happened. Today i come home to a dead fish. Why did he die? What can i do to prevent this from ever happening again? Thanks for any help!