so i decided to build a new stand for my 120g. after building the stand i put all my livestock into a 50g holding tank. the 50g is all the water i saved. so how do you guys think i should move my livestock in now? the tank is filled with new saltwater and all i have from my tank before the moved is 50g of water. Thats a pic of my stand and tank i just build said:How "mature" is the rock in the 120? I.E. where did it come from. Is there rock in the 50 gallon?