hi i was thinking of setting up a huge tank 400-500 gallon tank with a powerful filter and live rock and other rock in it with coral sand i was thinking of houseing a large blacktip grouper,one bamboo or epulet shark,one jeweled eel,one chain eel,cortez ray and one or two other larger fish like large butterfly fish or tangs but was wondering if i would be able to put some large brain corals and a sponge up towards the top of the tank would this be possibal?