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Old 02-10-2004, 11:20 PM   #1
Drakken
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OK, if you saw my other thread I was asking about lighting for my 54 gal corner tank. From the suggestions there I decided on 175 watt MH pendant.

So my questions are:

What is better 5500K or 6500K?

Is a Coralife bulb better than a no name (Coralife bulb upgrades are about $60) on most sites.

How close to the glass can the fixture be mounted?
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Old 02-11-2004, 12:46 AM   #2
rumples riot
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Metal Halides should be placed no closer to the top of the tank than one foot. The glass on the tank cover should not be in place as the metal halide will eventually crack the glass with the heat.

I would think that the use of a coral life bulb would not be warranted because of the light spectrum. Coral life bulbs are designed for marine tanks with coral growing in them. What limited knowledge I do have would suggest that a bulb around 6500k would be ideal for your purposes, however I would check with your retailer (assuming this is a LFS) and they should give you the right advice.

Best of luck.

Paul
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Old 02-11-2004, 12:52 AM   #3
Rex Grigg
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rumples,

Coralife is a BRAND name.
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Old 02-11-2004, 01:12 AM   #4
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Sorry Rex, here in Oz it is a type of bulb too. But should have thought of this. Thanks for the heads up.

Paul
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