I am new to the reef keeping hobby, so new I haven't even set up my tank yet. My wife bought me a Coralife Biocube 29 for xmas and I have been gathering as much knowledge as I can about the hobby so I can try and do this right the first time. I have the tank now set on the stand and did a simple filter modification since everywhere I looked people said the bio balls should be tossed. I removed them and the filter pad and put in 2 eshopps sump sponges for mechanical, a bag of Matrix bio media and a bag of Purigen for chemical, and have ordered 25lbs of live rock for the biological(arrives later today!). I also bought 40lbs of Arag-alive Fiji pink sand. The tank is still empty until the rock gets here. I also have bought Petco's Real Ocean Water to fill the tank after the rock has been set up and sand put in. I am very excited to start my first tank!