The tank is a 3' x 2' x 3'6" and thanks. I have a question for the experienced reef system folks on here. I'm trying to decide what I will be doing with the tank exactly, I know that just like freshwater saltwater has aggressive, community, and docile fish. I really want to go with the soft and hard corals, but I do not know which fish are safe to put with coral. It would be interesting to have a starfish and maybe some other neat creatures to help clean the tank but again I am not sure. If anyone has any information on reef safe creatures and fish that I could use to review. I realize of course I have plenty of time before I really start stocking the tank but I just want to try and really plan out the design of the tank.