Tokophrya spp.

Suctoria (sessile ciliates)

  • 10 – 200 µm
  • spherical to pear-shaped body
  • tentacles evenly distributed over body or grouped in two to four bundles
  • with stalk, attached to activated sludge flakes without muscle

 

In activated sludge:

  • in long-lasting stable conditions and where sludge loads are not too high