Why I consider heavy feedings a "stressor": When fed intensively, E.quadricolor is more prone to asexual reproduction. Therefore, cause-and-effect analysis would indicate feeding is indeed a "stressor." I think we're debating semantics here, and probably are in general agreement.
Host anemones are not voracious predators. They do not feed regularly on diets consisting of large, fleshy foods in the wild. Rather, leading authorities suggest the bulk of nutrition is sustained with sunlight, plankton, detritus, and direct nutrient absorbtion. Because plankton availability is virtually nonexsistent in closed systems, we're sometimes forced to supplement their nutrition with unnatural feeding regiments. BTW, clownfish are also not known to consume large prey items. Stomach analysis suggests they feed on algae and very small plankton. Because of this, it's highly unlikely they intentionally feed their hosts anything in the wild.
