I'll keep you posted on the results. Perhaps I will see you soon at the next GSAS meeting. As a lighting engineer I thought I would add a couple of comments that may enhance the understanding of this interesting lighting issue. T8s produce a fuller, broader spectrum of light. For living space questions, they tend to be better in color rendition than the bluer cool whites or the yellower warm whites.
People tend to like the quality better.
Therefore, I can assume that they are better for aquariums as well. Secondly, Ronald mentioned the operating costs of lighting as part of his analysis. There is a couple of features of the T8s and electronic ballasts that he failed to mention. T8s are inherently more efficient than T12. This serves to reduce the operating costs.