As a newbie to the SW world I have been overloaded with what to get what not to get. I have been told just get plants. Get this $500 dollar skimmer. Out of these skimmer which I have seen many people talk about wich is best suited for a 75 gallon tank. I plan on having fish only tank with live rock and live sand. Don't know how much though. Maybe one day might get into having live corals ect