FWIW, I have four BTA clone lines. Three of the clone lines are seen in this picture. The brown goes back to a wild purchased in 1998. The Teal/Pink Tip I got in '05 or '06 and the Rose I got about a decade ago. With splits happening roughly yearly I don't see a need to feed. There's also research showing too much food can can have negative impacts so if you want to reduce your nitrates and possibly improve your animal and systems health an reducing how much you feed your anemones might be one way.