Hello there! Does anybody have any guess what these tiny guys are?
There are reproducing pretty fast but they arnt getting a lot larger then a pin head. You can compare the gsp polyps as a reference.
If you put it in the sump it can eventually make it into the display. In the video he points out that it gets into the water column and spreads to other areas in the tank. I think it's beautiful but after battling runaway Xenia a couple years ago, you couldn't pay me to put that stuff in my tank.