I found this critter while looking at some muck I picked up with an eye dropper from one of my lily pots. This was initially misidentified as a Rotifer, but it is in fact a Didinium. Its claim to fame in the micro-critter aquatic world is its ravenous appetite for Paramecium. There are several You-Tube videos that show Didinium grabbing and sucking Paramecium into and through their mouths between the two swirling wheels. These swirling fans are used to direct other small microbes into their mouths when Paramecium are not the special of the day. Back To Image Index Page