Yesterday I looked through my algae test tubes and I found these little things that were visible to the naked eye, they looked sort of like hair which was a little weird. The test tube that I saw it in was the control with no treatment to it just plain Rio Salado water. Matt and I identified to species of blue-green algae one was Nostoc, and the other one was Chroococcus. The picture below is Nostoc but when we first identified it, it looked some what different. This is a picture of a day old algae out of water.