best lighting? - Tropical Fish Keeping - Aquarium fish care and resources
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post #1 of 4 Old 08-30-2009, 02:36 PM Thread Starter
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best lighting?

i know plants need blue and red spectrum to photosynthesize and that you idealy want 5500 6700 kelven for planted aquariums. i am getting down to my final descision on what tubes to get and i have two in mind but im not sure which is better. FYI tank is 24 incehs deep

Ideal for freshwater planted aquariums * 2800°K bulbs for optimum plant growth * Emits a warm photosynthetic spectrum to intensify plant color and stimulate plant photosynthesis 2800°K bulbs for optimum plant growth. Emits light that stimulates plant photosynthesis and intensifies plant color. Ideal for freshwater planted aquariums.

Color Spectrum Chart Simulates natural daylight with peaks in the red, green, and blue region of the light spectrum to produce light that is appealing to the human eye.
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post #2 of 4 Old 08-31-2009, 12:13 AM Thread Starter
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post #3 of 4 Old 08-31-2009, 12:51 AM
IDK exactly what kinda bulbs you are using. I would go for 6,000-7,000K on a basic tank, because that is what I prefer visually. But any bulb between 5,000-10,000K works.

The 2,800K you listed is not a good choice IMO, I've tried using a bulb with the same color temp and was not happy with it. Also if you look at the spectrum chart there is no red spike.

The second bulb is a little better just looking at the color spectrum, but what is the kelvin rating on that bulb?

.... I'm probably drunk.

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post #4 of 4 Old 08-31-2009, 01:45 PM
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Agree with Mikaila31, 2800K is no good. The second spectrum graph looks like the Life-Glo tube if I'm not mistaken. If it is, that is 6700K and in my view an excellent single tube light. With two or more tubes over the tank you can have the same or mix it with something else to highlight blue or red as you prefer.


[Think we've had this discussion before...? No matter, just twigs some bells or something. B.]

Byron Hosking, BMus, MA
Vancouver, BC, Canada

The aquarist is one who must learn the ways of the biologist, the chemist, and the veterinarian. [unknown source]

Something we all need to remember: The fish you've acquired was quite happy not being owned by you, minding its own business. If you’re going to take it under your wing then you’re responsible for it. Every aspect of its life is under your control, from water quality and temperature to swimming space. [Nathan Hill in PFK]
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