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Originally Posted by snaggle
I am building a new canopy for my 75 g tank and I got a MH from Canadian Man. I was wondering if I can get any 250W MH bulb or are there ones that only work with the ballast. Also is there any one who uses a 20,000K bulb I would like to see how blue it is?
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Bulbs usually work with most ballasts. I have used a 20,000K Arc bulb.
It was 175W, and I hated it because it was really blue, and had very little punch. I have a 14000K 250W Venture bulb that I really like, but I am switching to two 175W bulbs, so I have to sell that bulb.
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For my new canopy I am using screw in 23W 6500K PC bulb, 4 48" actinic NO fluorescents, and a 250W MH I don’t know the K rating. There will be 4 of the screw in bulbs at either end of the tank I can fit two more in there if needed. Is that going to be enough light for my tank or will the ends look rely dark?
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I don't think the ends will be very dark, but having no experience with those bulbs I am only guessing.
Brad[/quote]