Soooo… I’m newer in the hobby but I’ve run a pretty successful 55 gallon mixed reef tank for the last 6 months. I decided to upgrade and purchased a Red Sea xxl 750 160 gallon display 40 gallon sump. I have my LFS coming to put sand rock and water in tommorow BUT I am concerned about the rock formation. The expert at the lfs says I need to have 150-200 lbs of rock which is fine but I think that’s gonna just make a wall of rock in my tank, I’ve been watching Ryan from brs tv on you tube make the negative aqua scapes and I’m really into that look. My question is. If I allow the lfs store to do the rick the way they want to help cycle the tank faster ect. How soon can I remove all of that rock and replace with my own aqua scape ? Does my own build need to meet a certain weight requirement? And will I mess my water up doing so?