RM...........here are some links to some good sites that have theproper bulbs

as well as some info on lighting.

http://www.hellolights.com/index.asp...S&Category=522

www.ahsupply.com

www.aquariumguys.com/aquarium-lighting.html

http://www.marinedepot.com/ps_Aquari...ng__index.html


Copy paste from yet another web page on lighting of aquariums..which
does not sell any products.
When you are buying an aquarium lighting, you have to choose it
carefully. The right type of the lighting is very important for the
aquarium. It is because plants depend on it. If you choose a wrong
type of the light, it may cause that your plants will not grow, but
algae will. But it si important in the fish-only aquariums too. It is
because fish need to see where they are swimming to and what they are
eating. Fish should have from 10 to 12 hours of light trough a day. If
you shut down the light suddenly, fish may be scared. The best way how
to shut down the light in the aquarium is to shut it down few minutes
before you shut down the light in the room. And before you turn on the
light in the aquarium, turn on the light in the room, if you have a
darker room. Some aquarist have a night light in the aquarium. It is
called lunar light too. In the nature, such light is normal for fish
because at night it is not as dark as in a room.

There are two things that are important when you are choosing an
aquarium lighting: colour spectrum (kelvin) and brightness (par) of
the light. Manufacturers makes lights in some colour spectrum
variants. The best colour for plants are red and blue parts of the
spectrum. But if you have a fish-only aquarium, you can choose a
yellow-green part of the spectrum, but the best is a full spectrum
light. The brightness of the light is more difficult to choose. It is
because you have to know how much light plants will need and how big
will your aquarium be. You need to know exactly how deep and wide will
your aquarium be. It all affects the brightness in the tank. The more
deeper your aquarium is, the more stronger light you need. Generally,
a tank should have got from 0,0015 to 0,0022 W on a square
centimeter.

The best way how to measure how much light you have in your aquarium,
is with luxmeter. The intensity of light is measured in luxes.
Freshwater aqarium plants need maximum 5 000 lux and sal****er plants,
sea-flowers and corals need more than 6 000 lux. It is very important
to know how much light need your plants, because if they have more
light than they need, they will not be as pretty as they can be and
algae will grow in your tank. So here are some examples of how much
light need some species of plants: Cryptocorinae and Vesicularia need
maximum 500 lux-1000. They like mild light. Anubias, Echinodorus,
Sagittaria and Hygrophila need 1500 - 3000 lux. It is a gentle light.
Bacopa, Ceratopteris, Egeria and Ludwigia like quite bright light 4
000 - 6000lux. Vallisneria, Cabomba, Myriophyllum need the most light
- over 6 500 lux.

The most common lightings are Fluorescents tubes. They can be made in
many colour spectrums and many sizes. They last for about one year.
They also can simulate daylight. Tungsten and Halogen Lamps are used
in some cases, but they are not a good choice. They are maybe cheaper,
but they need more energy and last for a short time cost nmore
overall to power and spectrum shift quicker and also add too much
latent heat to a typical FW tank. . Regular household type florescent
tubes do not have ******the right colour spectrum for growing
plants********. This is also the the reason *********normal lamps
should not be used**************. By the way, unlike like lamps
specialy made for aquariums, ordinary house lamps would not light up
the whole aquarium the same way.