[pogodzib]

It took me a while as well to come to the conclusion that T5 bulbs have their use in reef tanks. When they first came out, I was trying to figure out if they were really a benefit over PC or VHO lighting. But, I know people that love them and use them over SPS only tanks so I know that they work. Would I put them over a tank that was taller than 18" - not yet, but, with the T5 VHOs coming out, they may be a benefit over deeper tanks real soon.

BTW - For plant growth, are you using standard T5 lighting or T5 HO lighting with individual reflectors like are being used over reef tanks. The individual reflector make a huge difference, which is why there is a big difference in performance between the cheap T5 HO units and the good units.