I usually use T5s but am going to be using a T8 fixture on my current tank.
So my question is what T8 bulb would be best for a planted tank? It will be a 24" 2 bulb fixture so if you have a recommended combo of bulbs I would love your suggestions.
If you intend to keep low to moderate light plants, then GE has a good 6500K Aquarium Plant bulb for a few dollars each at the local hardware stores. I've used them in my tanks for several years with good results. A T8, florescent bulb is 32 watts.