Hey guys this system has been setup for about 6 years. It's been redone a few times but only to manicure. The main is a 20 high, with a 20 gallon long frag attached, all running into a 10 gallon sump that holds my diy skimmer and the pumps for dosing. This system was recently redone and is loaded with about 35 LE frags. I've got a total if probably 60 different stonies between the main and the frag tank, a few different zoas and lps.