I have a 20 gallon long that I have initially set up as a terrarium just a few days ago. I have an aqueon t-8 flourescent bulb I'm using for the moss and ferns I have planted in about four inches of substrate. I'm looking for a low heat signiture that will keep low light plants. My basement temps are pretty good for my future plan of adding Fire Salamanders or anything that will do well the the mid-upper 60 degree range. But that's up the road. For now I'm just wondering if the t-8 can keep plants. Thoughts?