I made a little video and put the sample under the microscope. This tends to come back more during the day and dies back off. I took this sample first thing in the AM before the lights came back on. Most of the effected sand bed area, whatever it was, had died back up the sample I took still remained..... So, this makes me wonder if its a combo of things and I may need to get the sample in the day time under the lights and put it back under the microscope then...... Thoughts? Ideas? Any idea what this is? Video link below: