I was originally gonna start out the hobby by using my 75g in storage but decided to tone it down to a 30g long. Soooo, they say to use a hang on protein skimmer instead of a protein skimmer in a sump for a 30g. But would a sump/refugium be too much or unnecessary? Gonna use some live rock then surround it with base rock and use the live to seed (also live sand), how much sand and rock will I need? And what kind of light will I need to get proper care to my corals or inverts that require light.