fixed colonies appearing at final size in first frame of GFP movie by using X from XAll2, also put RIKOAll2 so GFP baseline in movie only appears where RIKO is present. appeared to find source of checkerboard in diffusion term of C when C is very small, discovered this when adding in zeroing of C elements which were less than calculated consumption divided by area, so diffusion could not work on very small values as nodes under colony go to zero. But need to find deeper explanation for this, also it seems that colonies don't grow at all because not enough total carbon. Although at least now all carbon seems to be being drained to zero, but need to check whether there might be a bug in zeroing code