Marineland F30T8 Natural Daylight 36" Bulb - How many K? - Tropical Fish Keeping - Aquarium fish care and resources
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post #1 of 5 Old 10-27-2012, 06:21 PM Thread Starter
Marineland F30T8 Natural Daylight 36" Bulb - How many K?

So my new lighting hood came with 4 Marineland bulbs, which are marked F30T8 Natural Daylight.

I can't find the specs for the color temp (Kelvin?) anywhere. The Marineland site doesn't list them. I tried various google searches. Natural Daylight bulbs seem to vary from 5,000K to 6,500K.

Anyone know which these bulbs are?

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post #2 of 5 Old 10-28-2012, 05:50 PM
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Canadien, i googled it and I think I did find an answer: 6500K.
the f30t8 by ge stated that figure.

edit: do we really have to buy bulbs from aquarium manufacturers? I see the f30t8 in different places:, home depot

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Last edited by twocents; 10-28-2012 at 05:56 PM.
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post #3 of 5 Old 10-28-2012, 06:03 PM Thread Starter
I found bulbs labeled f30t8 ranging from 5,000k to 6,500k, though I didn't didn't find an exact rating for the Marineland ones. I think I need 6,700k but I'm really not sure about the bulbs, I'm a little out of my depth with the plants and lighting.

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post #4 of 5 Old 10-28-2012, 06:36 PM
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of a truth, so am I.
I have led fixtures. and most of the plants I have are low lights. anubias, swords. I try some out and I buy what survives.
good luck.
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post #5 of 5 Old 10-29-2012, 04:00 PM Thread Starter
I sent them an e-mail and they responded quickly. The bulbs are only 5200K.

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