So, I am in the process of setting up a brand new 75 gallon tank in my new classroom and transferring the livestock from the old 90 in my old classroom to it. I am going to take it slow and let the new cycle really well before beginning to add fish. This is the first new saltwater tank and stand I have had. I also bought a manufactured sump, RS-100, that is also a first. So far I have put in the rock, the sand, and the water. The rock includes a couple of seasoned pieces from the old tank. I figured that would help get the cycle going. I am posting a few photos of the old tank and the new tank. The first photo is the current tank. I'll post a photo or to later this week showing the new tank with rock and water and sand in place.