rucus: They are tiny crustations. FW kills them. If by "warmth" of a bulb you mean "Kelvin" tempurature, yes it matters, but not as much as power and nearness. Try 5100K or 6500K. As for the one guy trying an LED, I'm still waiting on the first growth pics this week.
jgray: The 23W CFL floodlights in the example produce 1250 lumens each. I was using 4 of them in my own bucket, for massive growth. You can try the ebay ones, but you might search for "plant grow" ones which have blue and red LED's, not white.
acer: Yes it works in FW. All the basics are the same. Green or brown does not matter. If you use a scrubber, either green or brown will absorb nitrate and phosphate, and get it out of your water.
jgray: The 23W CFL floodlights in the example produce 1250 lumens each. I was using 4 of them in my own bucket, for massive growth. You can try the ebay ones, but you might search for "plant grow" ones which have blue and red LED's, not white.
acer: Yes it works in FW. All the basics are the same. Green or brown does not matter. If you use a scrubber, either green or brown will absorb nitrate and phosphate, and get it out of your water.