OK, here is the situation. carpet anemone, clown fish with it. both were fine clown still seems to be with it but lately anem. will not take krill when i feed it, is moving about, looks funny, not falling apart but funny. try to feed daily but will not hold shrimp. water perames ok, plenty of light metal halides. why the change was feeding fine then just started this, should i worry? is this just a phaze? what to do.