theres mods for anything these days :look here under forums diy:
http://www.reefcentral.com also:
http://www.nano-reef.com and
http://www.minibow.com/ and for diy skimmers and etc
http://www.barraquatic.com and f
http://www.melevsreef.com/closedloop.html for extra flow and stuff i could go for ever
have fun