I bought this tank awhile ago, but just got it running about a week ago. At the moment, it has 100 lbs of sand, 10 lbs of Tonga Branch rock, 30 lbs of Pukani rock, 15 lbs of Eco rock, and I am picking up 25 lbs of Tampa Bay Saltwater rock this Wednesday. All the rock is from Bulk Reef Supply. Those numbers are what I ordered, but I think I got waaaay more than that. I picked up some red LEDs to go on the back. The light has blue moonlight LEDs, so when they are both on it gives off a cool purple light. You can see in this picture my make-shift overflow guards, if I can figure something out that works better, or someone has a better suggestion I'd love to try it out... All I need now is this skimmer. I'm going to order it later this week when I get payed.