I have been contemplating about what it would take/cost to build one. The dimensions would be 84x84x36. I want this to be a saltwater setup which will be in the middle of my downstairs with dry wall to give it the built in look. Can anyone shoot out some numbers of what the costs for building the tank, saltwater equipment and rocks and substrate would be? Obviously there is more money to be spent on supports, price of fish, etc. Sorry for the vague question but I need to know about how much to save up before I can even think about this kind of project. Thanks.