Kyaney, i too have had anemones for about three years now. I acquired two bubble tips originally, only to have one divide on me so now have three. They too do the same thing as yours disappearing for a short period of time only to reappear somewhere else in the tank. I also agree with your statement of to each his own. My point was jsut that if you have an anemone with a clownfish, you need to feed it significantly less if at all, because this is one of the benefits of the anemone from its symbiosis with the clownfish. The clownfishfeeds, grooms, and takes general maintenance and care of its anemone while the anemone protects the clownfish from predators by offering it a safe haven full of stinging cells that would harm its foes. i have had anemones with clowns and without, and without a clown i have found that the anemone does better with infrequent feedings. I personally dont feed mine once a week, but try to at least twice a month, if they dont have a host fish. On the other hand, if they do have a host clown i hardly feed at all, because when i feed the fish, the clown takes pieces of the meaty foods such as mysis shrimp back to the anemone. all that our tanks are are experiments in biology and that being said there are about a million different ways of doing things, as weve all encountered here on the board. what works for me might not work for you, but im still gonna throw it out there so that others may try it and have success. That is what is soooo cool about this hobby. Its one giant science experiment!
good luck
jon