Well I found some pretty good priced LR
rubble for sale, which is pre cured, which I'm going to add to my sump. I'm only going to get about 20 pounds. The tank it's going in is a 56 gallon, with about 50-60 lbs of LR
already in it, and has a 20 gallon sump I've been putting together. My question is, do I need to cure the rubble again before adding it to my system? And will 20 lbs of live rubble going into my sump throw my system out of wack? This is about the only place I've found rubble that isn't a ridiculous price, and it's perfect for my sump idea, I just don't want to screw up the whole cycle. Any input would be greatly appreciated!!