<a href=showthread.php?s=&postid=12502954#post12502954 target=_blank>Originally posted</a> by Peter Eichler
Many many zoanthids exhibit no prey capture, at least not with something as large as a rotifer which is quite small by coral food standards. I probably have dozens of varieties of zoanthids and very few will benefit from target feeding. Most zoanthids, what is often refered to as seatmats, are highly autotrophic and probably receive the remainder of their nutrition from absorbing various compounds, bacteria, and taking in tiny particulate matter.
In short, with many zoanthids you're wasting your time by blasting them with a turkey baster full of marine snow (or similar) and cyclopeeze. Lastly, the smaller polyped and closely spaced zoanthids that form mats that are popular in the hobby seem to be the least likely to exhibit prey capture.