I just thought I would share that when my sister set up her 14 gal biocube, the LR she bought eventually developed a GBTA. Under the stock lighting, filtration, everything, in a little over a year, she now has 4, all have which have resulted from the dividing of the larger one. Granted the other 3 are VERY small, but still. I just thought I would share how this crappy lighting was actually able to support not one, but 4 nems.