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Old 08-08-2005, 01:18 PM   #1
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What kind of bulb to get??

I have a 35 gallon HEX and i am purchasing a 175w metal halide pendant for it. What is the ideal bulb to get for it? 10k? 13k? or 20k?. I will not be running any actinic (not sure if i spelled that rite) lights, just the pendant only.

Any suggestions or comments will be appreciated
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Old 08-08-2005, 01:29 PM   #2
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without the actinics, I would go 13k or 20k (I like a bluer look)
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Old 08-08-2005, 02:20 PM   #3
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Hara is right, the higher the Kalvin (sp?) Rating the more blue you're going to have. If at all possible, try to supplement some Actinics in your tank, if you don't have space, go with the 13 or 20k. I've seen the different bulbs, and I like the 20k more..it has a really nice blue hue.
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Old 08-08-2005, 02:54 PM   #4
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Are 13k or 20k bulbs good for growth?? I am just worried that the 20k mite be too blue..
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Old 08-08-2005, 03:17 PM   #5
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I would say the 13 will give you plenty of blue and still give enough other spectrum for growth.
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Old 08-08-2005, 03:58 PM   #6
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I had 3, 250 watt 20k MH bulbs for over a year. The corals growth was excellent.
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Old 08-08-2005, 04:06 PM   #7
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I think the 20k is not as intense but with a 35 gal, you should be fine. I used to use 10k's with very little actinic. I am using 14k MH with a 03 T5 and a Blue+ T5. When the Halides go out, the tank is VERY blue but the colors I get are amazing.

I really could not tell a huge difference with the CV 14k and the CV 10k. Some 20K are not super blue either. Just research the brand to see before you buy.
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Old 08-08-2005, 04:54 PM   #8
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okay, i think im gonna go with the 13k bulb. Can anyone recommend a good bulb brand? or are they all pretty comparable. Something affordable but also dependable.
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Old 08-08-2005, 05:14 PM   #9
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mogul or hqi?
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Old 08-08-2005, 05:30 PM   #10
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Quote:
Originally Posted by Hara
mogul or hqi?
what does that mean?? sorry if its a stupid question. Im kinda new to lighting and corals.. My current tank is fish, inverts and live rock and sand only.
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