Heard some bad stories of APEX at Reef central.
http://www.reefcentral.com/forums/showthread.php?t=2124024
http://www.reefcentral.com/forums/showthread.php?t=2385627
http://www.reefcentral.com/forums/showthread.php?t=1908919
Aquamarin is having a good pricing on their ATI light set now. If you are on budget, get the ATI sun power 8 tubes. It is cheaper and proven by many reefers. Give Aquamarin a call.