So I currently have a single 15w T8 18" bulb over my 25g aquarium. I want to plant my tank more but this doesn't seem to be adequate lighting for most plants. I don't want to buy one of the overpriced bulbs from the LFS so i was gonna head to the hardware store later tonight to find something.
So far I think what I need is a 6500k or so, T5 and about 50-60w or so.
I'm curious if I should be looking for anything else or those are the only important factors in choosing a lightbulb, and if my numbers are right.