Well you guys I am posting some very sad pics of my hex. I have just started to build this lil reef and can totally use any advise yall have. Only have about 10lbs of LR right now but of course going to add more when funds are avaliable ;P. At the moment I have crushed coral as a subtrate and have questions about that too. Is it ok to add sand on top of the cc ? What are the downfalls if any in doing this ? I plan on tryin to build a little shelf in the middle of the tank for better heigth, does anyone know the best powerhead placements for this ? Sorry newbie questions I know. Feel like a schmuk for postin these pics as you guys have such beautiful tanks !