Submitted by melev on Mon, 11/21/2016 - 05:17
A great member of a cleanup crew should be the Tigertail cucumber. It mops the surface of the sand with its many appendages, ingesting everything and pooping out clean sand pellets that break apart in the normal current of the aquarium. They can move a lot of sand, enough to make the rockwork shift at times. If you support your rockwork with acrylic or PVC inside the substrate, cucumbers can't cause any issues in your reef.
Submitted by melev on Thu, 11/17/2016 - 21:41
Asterinas starfish get a bad rap on social media...