How powerful are compact bulbs - The Planted Tank Forum
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post #1 of 5 (permalink) Old 12-16-2003, 08:18 PM Thread Starter
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Most of the compact Fluorescent bulbs have very low watts, but the light they is much greater than other bulbs of the same watt or bulbs of higher wattage.

I want to know how many and what kind of these bulbs you all would sugest for a thirty gallon tank that has co2


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post #2 of 5 (permalink) Old 12-16-2003, 08:22 PM
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Depends on what you are planing on growing. High or low light plants
Do you have adequate substrate?

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post #3 of 5 (permalink) Old 12-16-2003, 08:23 PM
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Greater than other bulbs... you mean incandescent bulbs? That would be correct.

What are the dimensions of your tank?
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post #4 of 5 (permalink) Old 12-16-2003, 09:08 PM
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Ignore the "equivalent to ##watts of incandescent light". With CF bulbs, you want 3 watts per gallon since there is so much restrike. So I'd go with 90 watts of bulbs on your 30 gallon, at the very least.

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post #5 of 5 (permalink) Old 12-17-2003, 12:24 AM Thread Starter
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I will have a subsrtrate if florite and sand on top
i don't know yet what types of plants I am going to grow, I suspect I should consult the index of plant on the sight to find out what ones I want to grow.

and the dementions of my tank are
30,1/4'' long 12,1/2'' deep and 18,1/2'' tall

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