150watt halogen over a 5g cube? - The Planted Tank Forum
 
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post #1 of 8 (permalink) Old 10-25-2005, 04:49 AM Thread Starter
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150watt halogen over a 5g cube?

i got some mini flouresent light bulbs at walmart and saw that they had almost no red light and tons of blue. i was going to put three of them on my 11 inch cube(5.5g) but now i'm thinking of putting a 150 watt halogen light bulb in the middle of two of them. will the 150w halogen provide enought light for most plants but also not bake any fish i might get? btw the lights will be about 8 inches from the surface of the water if i can set everything up like i want.
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post #2 of 8 (permalink) Old 10-25-2005, 05:50 AM
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30WPG! I think that might bake just about anything!
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post #3 of 8 (permalink) Old 10-25-2005, 01:31 PM
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Halogen is just incandescent. So the color temp is likely to be a bit low. Also they do put out a lot of heat.
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post #4 of 8 (permalink) Old 10-25-2005, 01:37 PM
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Try daylight plugin power compact fluoroscent instead (usually sold as a incadescent direct replacement aka power saving bulb), no ballast starter etc is needed, just plug in the short, small bulb and instant light up. You can use adjustable desk light / reading light with legs and flexible extension for the fixture. Looks right and some people says it does the job. 150W halogen sounds an overkill and probably it does not do much good for your plant (I think it is less than 2000K, too far from 5000-10,000 normal requirement). A screw in power compact will save you much power bill also. 150W better goes out on a MH or a T5 system.
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post #5 of 8 (permalink) Old 10-25-2005, 02:46 PM
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You can find one of those bulbs that is 23W-26W and I believe 6500k at Wal-Mart. They are around 6 bucks. I am using a 19W 6500k fro my 2.5 gallon that I got from a friend....still have no idea where he got the bulb. It seems Wal-Mart is the only large chain store that sells a bulb over the "cool white" spectrum.
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post #6 of 8 (permalink) Old 10-25-2005, 03:34 PM Thread Starter
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the 10watt bulbs that i got are 6500k but they produce almost no red and where about 5bucks total. i am on a budget and want to use some decent lighting, i'll try looking for more powerful U shaped flouresent bulbs. thanks
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post #7 of 8 (permalink) Old 10-25-2005, 03:38 PM
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Try a 13 Watt Retrofit kit from AHsupply.com. They sell 13W compacts in up to 10,000K.
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post #8 of 8 (permalink) Old 10-25-2005, 07:42 PM
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I also have an 11" cube and I second the recommendation of the 13 Watt Retrofit kit from AHSupply.com, or maybe two if you plan on keeping them high off of the tank and want high light. I actually used 3 of them on my cube when I was using DIY CO2, but it was too much work for my office tank. I am going to set it up again with just one 13 watt, no CO2 and lower light plants. The AHSupply.com reflectors are really good and you get a lot of light for only 13 watts of power.

-Craig
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