Join Date: Oct 2012
Location: Central Florida
Is stands for Compact Fluorescent Light.
And yes! I use CFL's on two of my tanks, and you could actually grow some medium light plants in there too, the light can be quite strong, especially on a 3 gallon. I have one on my ten gallon, and I'm growing potted watersprite, bacopa, pygmy chain sword, crypt wendtii, an amazon sword, crypt balansae, and anubias var. nana.