I will be getting a 180g tank(72*24*24) by the end of the year.:dance2: I will be moving my planted tank to that one. My current planted tank is 55g, I have a pressurized CO2 system, and a pet store blue gravel:crazy:. I will be getting new substrate, what type should I get? How much will I need? And what else do I need to do. I have to get everything before I buy the tank so it does not look like I am spending that much.