Thanks Nova. Still no sign of them today either. But, I can say that the algae is so much better. I had to do a couple things, which I will not elaborate on, to the rocks, and I started trying the spot treatment in some areas, and I can safely say, I see a major improvement. The sand bed only looks like it is dusted in a few areas. I can't tell if its cyano or the old crap. I have been running the actinics only for about 4-6 hrs a day. Things are looking good for now. Changing out the sand was a good idea me thinks lol!!