Hello, I want to start a fish only aquarium. I already have a 30 gal. tank with live sand in it and one of those filters that have a protein skimmer in them. It's been running for 4 days now (I was told at the pet shop it helps to acclimate the water). My question is if there is something I should know about before introducing the fish? Also, can a clownfish live in a synthetic coral? or do I HAVE to buy an anemone just for them? Any info you guys can give will be appreciated. Thanks