glxtrix;467374 wrote: Alrighty, I'll give what I know. I run 3x175 on my 140g. I began running Iwasaki 15k (more like a 12K) very powerful bulb! esp if paired with a LB reflector....and for that fact I will say you'll get similar power with LA and LM/LME reflectors. I run ARO electronic ballasts...can be found here: http://www.hellolights.com/index.asp?PageAction=VIEWPROD&ProdID=457">http://www.hellolights.com/index.asp?PageAction=VIEWPROD&ProdID=457</a>
I highly suggest these! Awesome ballasts and have a 3 yr warranty through hellolights. The Iwasaki and ARO ballast got awesome PPFD numbers according to Sanjays light tests. Next up would be the Icecap ballasts, but I believe those cost more. That set up would be if you're out to grow coral and have a decent looking bulb that's not horribly yellow. It's like a hyper white with a slight tint of blue. Unfortunately, these bulbs will hue shift and lose PAR around 6-8 mos...I ran them a full year though...because they are a little pricey: [IMG]http://www.aquariumspecialty.com/catalog/product_info.php?cPath=28_35_373&products_id=1948">http://www.aquariumspecialty.com/catalog/product_info.php?cPath=28_35_373&products_id=1948</a>
I currently run the Reeflux 12K bulbs:[IMG]http://www.reefspecialty.com/Lighting-Reeflux-Bulbs/c14_34/p67/Reeflux-175watt-Metal-Halide-Mogul-Base-SE-bulbs/product_info.html">http://www.reefspecialty.com/Lighting-Reeflux-Bulbs/c14_34/p67/Reeflux-175watt-Metal-Halide-Mogul-Base-SE-bulbs/product_info.html</a>
These are very nice...lower PAR, but a nice blue and decent coral growth. Definitely doesn't match the growth of the Iwasakis, then again the PPFD is about half! These are the only bulbs I have exp with, and personally think it's the only bulbs worth looking into for 175W....unless you want more blue...but for a frag tank, that may not be worth it. Feel free to ask any other questions, I'll do my best to help answer.[/QUOTE]
I think I remember your thread about switching bulbs. If you had to guess How big are the Iwasakis? I'll pm you tomorrow about more questions. Got class early tomorrow!