ligthing/ricordia

[workn2hard2day]

Looking at these but not sure if my ligthing is good enough
http://canreef.com/vbulletin/showthread.php?t=59053

I would like to place them on the rock at 18"below ligths
I have a 6 T5HO x 24w
2 x 12,000
1 @ Fuji Purple
1 @ blue plus
2 @ actinic

also my flow is an vortech mp10.

Any input would help, I would change up/down the bulbs if need be.
Thanks, kim