Lighting

Thanks I was meaning to use it during the day though. But thats fine, I don't need to get one, just wanted to check and see because that cage doesn't keep a lot of heat.

If she is closer then I would use the 75W
 
I use extra flourescent lighting on all of my cages. I have had no adverse reactions. I have gotten my hibiscus to produce buds under these lights pretty consistently but only on the upper quarter of the plants. I have switched brands around a bit the latest is the cheapest. Guess will see how that works out in a couple more months if the plants are still holding thick like they have been.

I have been using lights in the 6500-6700K range. K stands for Kelvin. Kelvin is a measure of heat. The heat rating is directly tied to the type of light that these bulbs will produce. Say one in the 2800-3500K will be more blue to purple. One in the 5500-6500K will be more on the yellow to red side. If you where just going to add one I would go with one with a higher Kelvin rating. Plants find this more useful. This is also true with most incandescent bulbs. They generally produce light in these areas. They are not near as effective but they are way cheaper over the long haul. These flourescent bulbs will have to be replaced every 6-12 months just like your UVb ones.

I would probably steer clear of these types of bulbs rated at 10,000K. These are designed for reef aquariums. They do produce quite a bit of UVb to my understanding and am unsure as to what might happen.

Alot of these bulbs produce UVb. They do not show the ratings that low because as Brad said plants do not really need it. If to much UVb is present it can cause problems with plants but not the other way around.
 
Are you sure about your statements about Kelvin rating. Bulbs labeled as "Daylight" are usually in the range you stated of 6000-6700K and the soft white ones which produce more red/yellow light are in about 2500-3000k. It's my understanding that the lower kelvin rated lights are more yellow/orange and the higher kelvin rated ones tend to get more blue/green/violet.

Edit. It's kind of off stretching the topic, but I just don't want people to have misinformation
taken from wikipedia.

Color temperatureThe kelvin is often used in the measure of the color temperature of light sources. Color temperature is based upon the principle that a black body radiator emits light whose color depends on the temperature of the radiator. Black bodies with temperatures below about 4000 K appear reddish whereas those above about 7500 K appear bluish. Color temperature is important in the fields of image projection and photography where a color temperature of approximately 5500 K is required to match “daylight” film emulsions. In astronomy, the stellar classification of stars and their place on the Hertzsprung-Russell diagram are based, in part, upon their surface temperature. The Sun for instance, has an effective photosphere temperature of 5778 K.
 
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