Dont know how big the sumps will be but a few hundred gallons each for sure, was planning on running multiple large ETSS skimmers and if I dont go with them I will use some RK2 skimmers. Will need help with designing a calcium reactor large enough to keep the levels up. The tank should hold somewhere around 5500gallons because of the radiused corners. People help me out here... would 10-12k 1000W metal halide bulbs be more penetrating and make the tank brighter than using closer to 20k bulbs. these are the kind of things I need pointed out. Keep the helpful critiquing comming.

About the black tip reef sharks, I have seen many btrs in captivity and have never seen even an older mature btrs much over 4' They have been reported up to 6' but these measurments are given for the largest btrs ever tagged or captured. Most btrs in captivity seem to stay 3 1/2 - 4 1/2 feet in length when full grown. Ive heard of the odd one exceeding this by a bit but hey Im fine with it for now. In the next couple years I will be building a house and setting up another large display and the tank will be well over 20' long so if they do seem to outgrow this tank they can be moved into the new tank. and for now with the length and width of the tank with radiused corners they can glide quite abit around and around.

About the Vlamingii tangs, I have already had a school of them and like them very much I was planning on having a school of them already. Other fish that I am adding will likely be fish that like to feed heavily on Mysis shrimp as I have an unlimited supply at my disposal.