- Location
- Staten Island
whats going on everyone.. how many pounds of live rock should i have in my sump? my tank is 55 gallon with a 15 gallon sump. i would say i have about 60-80 lbs of live rock in my tank.

The 2:1 ratio is not always possible... unless you ground the rock into gravel, I'd like to see you try to fit 66lbs into my tank!
Bottom line is, the more rock you have, the better. If you can fit some in your sump... go for it, use it to hold macro algae in place... whatever... just get enough rock in there to keep your tank healthy.
