I am planning to start culturing my base rock in a tub for my new tank. I am thinking of getting 200 pounds of base and adding about 50 pounds of LR to it and let it brew with MH lighting, good flow and a giant skimmer for about four months or so before starting up my fish room. The rock would then be held in my sump/fuge to let it mature another few months. Display is not going to happen until after the summer. I used Hirocks in my 75, not bad nd cheap, these ReeferRocks look like they are more porous with better shapes. I may use a combo of the two for cost savings.