I just got a 36in 4 bulb t5 2 actinic's and 2 10k's with 8 3w blue led's for moonlighting on a 46 bowfront my concern is the lack of watts per gal its looking like 3.39 per gal there 39 watt bulbs. I'm using the light as a temp cause Im going to place my LED order with in the next couple months peace by peace per month Im down grading from my 72 bowfront 6 bulb Tekk T5 54 watt bulbs the fixure was having issue's these passed couple months so it's been running on 4 bulbs instead of the 6. so basically its more like 216 watts per gal I'm going to be moving my corals this week in the new site up with a H.O.B CPR large refugium and a 25 custom Acrylic sump and a EuroReef skimmer rate 125 gal's skimmer along with my temp HO T5 fixture and k3 and Vortech mp10 with about 90 lbs of lr and a 1.5inch SB and two TLF reactors for carbon & phosban I think I'll be alright. there's a green carpet, A dozen mini carpets. and one GBTA,RBTA PBTA sps, caps.softies,zoa's paly's, lps etc. If you could toss some feed back on my site up do's and don'ts that you be nice thanks for looking.