I had an anemone for about 2 months now and its doing great and i decided to try feeding it for the first time. i cut a shrimp into a very bad rectangle shape, about the size of the mouth or maybe a little under 1/2 an inch, and 4 hours later it spits the whole thing back out with some clear goo. is this normal? is the piece of shrimp too big? should i feed it small pieces of the shrimp? HELP!