so this might be a dumb question, but I thought I should ask.
the other day I was in home depot shopping for other things and I stopped by the lighting department and saw some flourescent bulbs that looked liek they might be viable for a 10g planted tank with a regular fourescent hood. the one I was looking at was a 18" long, 15 watt, 5000k bulb that was labelled as "natural sunlight". I can't find a link to it or I'd post it. anyway, I expect this would be ok for a low light type setup, but I noted the temperature of the light was in the range I've seen suggested for planted tanks (4000-6700k).
my LFS sells a similar bulb, same length, same wattage, but at 3500k I think for about 4 bucks more which is labelled as good for planted tanks. now I know 4 bucks is only 4 bucks, but I was wodnering which of these 2 are superior for growing plants.
thanks for any insight into this. it's been nagging me all weekend