Light Color - Tropical Fish Keeping - Aquarium fish care and resources
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post #1 of 5 Old 11-11-2009, 10:18 PM Thread Starter
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Chell's Avatar
Light Color

I was pushed a blue and white LED at the store, but I'm not really happy with it.

Because maybe the light's the thing that's (indirectly) killing my plants.

It's my second attempt at planted tanks since my mother gave away my other tank, with everything in it (it had a yellow light).

The first attempt went fairly well, and the second attempt uses the same specie (a incredibly hardy one), so that's why I'm puzzled.

To be 100% honest, I didn't completely discarted the possibility of infection/water condition yet , but...

Does anyone noticed any difference related to color of light in your tanks?
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post #2 of 5 Old 11-11-2009, 10:24 PM
I'm going to move this thread to the plants section of TropicalFishKeeping. There are people who can answer these type of questions over there.
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post #3 of 5 Old 11-12-2009, 01:55 PM
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Most plants do best with light waves in the red and blue spectrums. A "daylight" bulb that measures in the 6500-6700K range works best with most plants.

But if you're real question is about what you can do to successfully grow plants, you should start a new thread and indicate the size of the tank, number of tubes in the fixture and the K value of the tubes, number of watts, etc.
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post #4 of 5 Old 11-12-2009, 05:01 PM
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WisFish is bang on. There are things that need to be balanced, such as light, CO2, macro- and micro-nutrients, fish load...and water parameters are important as well. Provide info on your tank, and we should collectively have suggestions for success.


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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post #5 of 5 Old 11-12-2009, 05:06 PM
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plants can use pretty much any household floro tube as long as there is some red and blue Wavelengths in the tube. (most household floros are around 3000K) which will be fine for plants. Chlorophill A and B are most sensitive to The blues and Reds. Click here to see a chart, Now along with lighting you also need to have all other ferts minerals and trace elements aswell as c02 in balance to ensure your plants are nice and dont fill your tank with 100% R/O water (its too pure)

But to keep it simple there is a post on here that has a list of low light plants that will work fine with a low tech setup with like 1 watt per gallon and a all in one fert such as flourish complete or something simular. now if your looking into getting any type of sword you might want to look into a root fert along with a liquid fert.

hope this helps~
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