Had my first reef back in '99 and since then I've had 5 major redos. Along the way, I have tried many different techniques and faced most every major nuisance. Today I'm about 6 months into restarting my reef after I lost nearly all my corals last winter, and I have to say my reef has never seemed healthier. It's still got a couple years to go in terms of filling in, but so far the fish and the corals simply look fantastic, but here's the thing . . . I cut out everything except the skimmer and the sump, no refugium, no GAC, no sock, no calcium reactor. I did buy new live rock from KP Aquatics when I restarted my tank, and I am dosing B-Ionic and Red Sea NO3POX, but the system is as simple as it gets equipment wise: live rock, skimmer, and strong lighting. I have some pictures of the current system and they are not too impressive at the moment, but give it time. I've also included pics of my old reefs including my famous pick from 2011. Anyways, just thought I'd share my thoughts in case anyone is interested