Mag getting smaller

[SNAKEMANVET]

I have had this anemone for almost 4 years.I try feeding at least twic and sometimes three times a week.The problem is the clown fish, they keep taking the food from the anemone and spit it out into the water column.This anemone was pretty big when I got it and now about half the original size.I am debating on removing the anemone.