[pogodzib]

Growth. The person that recommends the 3000k bulb is by far the most knowledgible person I know when it comes to T5HO lighting over reef tanks. He has done plenty of studies and has used many different type of bulb combinations. I think Jim will agree that the person knows his stuff. The yellow color from the 3000k bulb gets washed away by the other bulbs so you don't notice the yellow tint. With that said, Jim did have problems with some corals under the 3000k bulb. This was probably because the 3000k bulb, in combination with the other bulbs, put out too much light intensity for the corals that it was frying them so he ended up removing the 3000k bulb.