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#1
02-08-2010, 09:12 PM
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You have to know your MH bulbs in order to create a good combination of MH/T5. Ushio 250W 10KK peak at 420 nm. If you used actinic T5's that also peak at 420 nm, you didn't get any benefit from the T5's in terms of color. Try to get T5 bulbs that peak at 450 nm/460 nm.
Sajay's lighting DB is a good site to look up your MH bulb spectrum. Quote:
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#3
02-08-2010, 09:48 PM
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I have 3 250W on my 5' tank. 150g and love it. I had 2 but not enough spread. You could see the hole left in the middle and it faded off fast at the ends of the tank. 3 150w may be ok. I am running 2 DE 14k Phoenix and LOVE the color. the 3rd is a SE 15K Plusrite, it's Far more red than the Phoenix fro sure.. more like a 9K maybe?
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Dan Pesonen Umm, a tank or 5
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#4
02-08-2010, 09:53 PM
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I don't mind the T5s, they are working great but I went to a fellow members home to purchase some corals and noticed his corals were growing out of control. He had mushrooms spreading like ivy across his tank. He had mH lights. I have an 8 bulb T5 that is doing the job just fine but my coral growth is somewhat limited. i guess the seed has been planted in my head that mH lights will provide better coral growth-soft or hard.
pterfloth- I was planning on buying your system but it is a bit long (6 ft) and wayyy too much wattage for me. You must have a black belt in the art of saltwater aquariums. I'm just a relative newby.
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#5
02-08-2010, 10:07 PM
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Quote:
 Actually, 2-400w Mh would look darn good over your tank. That's what I used to run on my 120. Personally, I don't think we can ever provide too much light for SPS, nor could we ever come close giving them as much light as they see in nature. I just switched to 1468w over my 6 ft 200 and it is definitely not too much light. I guess I am to lights what asmodeus is to skimmers. BTW, if you are interested in 2x400w, have I got a deal for you!
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#6
02-09-2010, 12:28 AM
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How big is the 2x400 unit?
Also, this is the unit I was looking at on ebay http://cgi.ebay.com/60-Metal-Halide-250-T5-HO-Aquarium-Light-Lunars-NEW_W0QQitemZ170441064647QQihZ007QQcategoryZ46314Q QcmdZViewItemQQ_trksidZp3286.m7QQ_trkparmsZalgo%3D LVI%26itu%3DUCI%26otn%3D4%26ps%3D63%26clkid%3D7711 656521745857106[/url] Anyone know anything about this? Is it worth it? Seems pretty cheap
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#7
02-09-2010, 12:59 AM
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Quote:
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#8
02-08-2010, 09:55 PM
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The Ushio 14Ks are very white... no yellow, but they really do need a bit of extra blue IMO.
My previous bulbs were 400W Ushios and I found them just a tad too white. The 400s were so powerful supplemental light had no effect. Since switching to 250W Ushios I've supplemented them with 1 Actinic+ and 1 Fiji Purple T5 and I've been reasonably happy with the color. I'm thinking of switch out the Actinic+ for a pure actinic, just to get a tiny bit more blue. If you want to show off and enhance your pinks... Fiji Purple!
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