If your wanting plants in your tank and you want a high light grow anything setup that youll need CO2
with then youll want about 510watts of light.. no CO2
medium light plants about 340watts.. low light plants only 170-255 watts..
If you want a fish only setup you will definatly want less then 170 watts of "usable" light
"useable" light- florecent light in the color temperature range of 5000-10000K, 5000-6500K ideal.. antic (blue) light can be added with little to no effect in FW
If you want plants you are going need to consider mostly CF
that would have to be overdrivin. MH
can be used if you can get the correct K
value in the bulbs..
Hope this Helps..