All of the data points are those on the graphs. I took about 100 data points today, so these graphs are just some of the data. The rest of it doesn't add much so I haven't tried to graph the rest.

Tomorrow I will cover the reflectors with aluminum foil, take more data. Then spray the aluminum with glossy white paint and take more data. This should add to my understanding of the effectiveness of mylar, aluminum foil and plain white paint for reflectors. I can get all of that on one graph.

One more thing - I took one measurement in my 45 gallon tank, with 110 watts of AHS light kits, at the substrate level, near the front of the tank. It was 90. I need to do a major pruning job on the tank before trying for more readings there, and it is much more difficult to get these readings, for several reasons.