<a href=showthread.php?s=&postid=10611930#post10611930 target=_blank>Originally posted</a> by 55semireef
Anemones in general routinely regurgitate/emitt waste through the same opening since cnidarians only have one "hole" on their body. The silverside you fed your BTA could have been to large for your BTA to digest. From my experience when I give an anemone something to big for it to digest it usually ends up regurgitated in the tank somewhere with a bunch of crabs on it. There is no cause for concern from what I can tell. Just feed your BTA smaller feedings. In fact, it is actually healthier for the anemone to feed it smaller more frequent feedings since it takes less energy to digest smaller pieces of food.