I am in the process of upgrading to a 90 gallon tank ( 2 250 watt halides, 2 95 watt actinics, moonlight, 20 gallon sump). I have added about 35 pounds of liverock and will move some 50#+ from the 55 as I slowly change things over. The tank, running for about 3 weeks now, has completed the cycle, no...