Hey thanks. I think it's because of the flow it's getting/ not getting. For a long time my red planet, and 2 millies have gobbled up a good chunk of the flow, and I think that accounts for the thinner branches. I'm doing some rearranging/ making some changes in my tank, so we shall see where it goes from here.
It's definitely got a much greener cast to the color, although that pic was taken under actinics, so that kind of skews the color a bit.