I have a 72x18x20H tank about 150lbs of live rock with ½†sandbed. 45 gal sump with 30lbs of miracle mud and caulerpa. A sedra 1200gph and 586gph pump for the returm. Total circulating water 140gal. currently have 5 damsels in the sump. Will run like this for 3mo. Then add half the crabs and...
