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Old 09-10-2011, 12:36 PM   #1
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Do my bulbs stink?

I have two 36" lights. Each has a 206w 15k metal halide, and four blue actinics.

Here is a picture of my tank. Corals and fish are nice and healthy but corals are only colorful under lunar led lighting.

I run the halides for four hours a day and the actinics for six. The tank is two months old. Any advice?
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Old 09-10-2011, 07:26 PM   #2
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There is no such thing as a 206w metal halide bulb. Metal halide bulbs come in 70w, 150w, 175w, 250w, 400w and 1000w.
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Old 09-11-2011, 01:41 PM   #3
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There is no such thing as a 206w metal halide bulb. Metal halide bulbs come in 70w, 150w, 175w, 250w, 400w and 1000w.
You are correct. This is the light I bought: Odyssea Metal Halide System

It says the Metal Halide is 250w.

Any thoughts on the bulbs I am running?
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Old 09-11-2011, 01:52 PM   #4
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Odyssea is the brand fixture. What brand are the bulbs? Some brands (or most no-name bulbs) suck, some are OK and some are very good.

Sanjays site has a comparison of many 250w bulbs. You can look for yourself.
Manhattan Reefs - Sanjay's Lighting Guide
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Old 09-11-2011, 11:04 PM   #5
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Odyssea is the brand fixture. What brand are the bulbs? Some brands (or most no-name bulbs) suck, some are OK and some are very good.

Sanjays site has a comparison of many 250w bulbs. You can look for yourself.
Manhattan Reefs - Sanjay's Lighting Guide
I'm pretty sure the bulbs are odyssea brand. They came with the light, and I'm sure they're not awesome bulbs so I expected them not to be great.

Is there a cheap light measuring device I can get or are they expensive?

Will a 20k metal halide bulb help bring out the coral colors?

Any guides or write ups to help me understand?

Thank you very much
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Old 09-12-2011, 01:37 PM   #6
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Does anyone have any guidance here on how I can increase my coral colors? The fish corals are coming through fine but when the corals are under the actinics with halides on they look brown/white; with the actinics only on they have some color but not a lot.
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Old 09-12-2011, 01:50 PM   #7
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go with a higher kelvin rating on your halides.
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Old 09-12-2011, 01:51 PM   #8
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go with a higher kelvin rating on your halides.
Mine are 15k, do you think the 20k odyssea bulbs would be ok?
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Old 09-12-2011, 02:25 PM   #9
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those look really. white to be 15k. 20k will deff add more blue to the tank to get the color.
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Old 09-12-2011, 07:25 PM   #10
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I had a 15k bulb that was very white. I don't remember what brand is was though. I personally use 14k phoenix bulbs. They are a very nice blue
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