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Is coloured light good for aquariums?
I read some biology book that orange-red light good for plant growth. So will it be wise for me to cover my tank white fluorescent white bulbs with orange transparent plastic. like those used in spotlights, so that the plants grow better?
Hey, that would not work, because you plants use the orange-red wavelength in white light I think. All you would have would be yellow plants and fish 
you can buy special bulbs that give off more of a orange red wavelength without turning everything orange 
Good idea though, it is people like you who have ideas to make this great hobby better that makes www.fishtankkeepers.com such and amazingly helpful place. I emplore you to sign up, and even to ask this question again on there for a MUCH better answer! We have some people who are great with lights and will be able to give you a very technical answer, which is what you should want, not from some random dude who just wants some quick credits on yahoo answers...
THANKS A LOT!
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