Therefore, the relative proportions of each organic food source may not be critical for these animals. Some zoanthids may not be observed to feed at all, while others are capable of ingesting rather large pieces of food. One small colony of very large Palythoa individuals was observed swallowing an entire bay scallop. Of course, this is not a normal food item for a zoanthid, but when one foolishly attempts to balance a small plate of "reef foods" on the top edges of the corner of an aquarium, accidents may (and do) happen...thus, let this be one of those lessons....

when faced with the a choice between the distinct possibility of a disaster or "oops" caused by the inane and self deceptive behavior of the aquarist regarding the statistical probability of a circus performer-like balancing act, or the likelihood of forces of the physical world actually taking precedence over one's own hopes to the contrary that such natural laws can be "willed" into not happening, it is best to force oneself to remember the outcome of most previous such happenstances and opt for the method of actually using sane judgment and working in consort with the laws of the universe when attempting any such actions.

:-o

A great quote from http://www.aquarium.net/0198/0198_1.shtml