mike1441
Well-known member
I upgraded from 90 to 250 gallon tank with about 150 new live rock (cured) and new gravel. I rinsed the gravel and added to the tank. It seem that I am going into a cycle anyway. But I am betting air or gas bubbles in between the gravel lots. Any advise should I just let it be or should I shift the gravel around to get rid of the bubbles.