Great thread here, i'm just going to throw in something to think about before you buy the tank. I have a "young" cycled 75 gallon mixed reef that is doing great, no sump but that's for a different thread. joshbrookkate, before you buy the tank consider the price difference between the 75g and a 120g, they both have the 48" length but the 120 gives you 6 more inches of front to back room with just a little added height. It's something I wish I would have considered before I bought the 75 because as much as I'd like to have the 120 now I just can't justify breaking my whole system down to get the added room of the 120. Just something to think about. Also I totally agree with the advise people are giving here about stain g away from the 90 for all the reasons given. Good luck.