What corals u plan on keeping? If sps u need G2-230w like the one i'm using, if just softees n Lps then G2-160 or 180 will do. Heres the link to DELightings http://delightings.com/index.cfm?GPID=30 or u can contact Razali directly from the sponsors' section in this forum. Also if budget isn't a problem then go for the cree LED upgrade, the color pigments of the corals really stand out with the cree upgrade. Prices all stated at the DE website.