Is crushed corals a must? Or is it just for looks? Could I add it later if I wanted?
So roughly this would work for my SW tank if I wanted to convert my 40 gallon to one? 2 Powerheads, a SeaClone Protein Skimmer, 80lbs of Rock, and a 4" DSB?
Would I have to have Live Rock? is that a must? If...