You can go ahead and light it now Don't add any herbivorous animals until you actually get algal growth. Otherwise, you'll starve them. Once you get a bit of algae, slowly add snails until you can get algae to a manageable level. After a while longer, say another month, you can add things that would clean the sand, like ceriths, a cucumber, etc. The key is to make sure there is something for them to actually eat. After you turn on the lights and get coralline algae growing, be sure to check on the big three parameters--calcium, alkalinity, and magnesium. It is better to get a good dosing regimen down now and have things stabilized than to wait until after you get your corals.
hahaha ) the MH's went over yesterday (sat) and this wednesday the tank will be up for 3 weeks.
im getting super anxious.