Green algae is growing on the top of my sand under the edge basking dock.
Its weird, but interesting. I just got a new UVB(Repti glo 5.0% 26 watt compact) and setup my lighting different, so some of the UVB rays are not on the basking dock. Im thinking the new uvb, and new placement with some shining on the water has caused it to grow.
Check it out
and heres a recent picture of my tank, just before I changed my lighting, now there is two clamp lamps right next to each other rather than the tube behind it.







