I am of the school of thought that less is more if you have intense lighting or not. I don't feed mine purposely. They are opportunistic and will catch a snack or the clowns will drop something for them. Anemones use a great amount of energy trying to consume food, digest food and expel waste . Overfeeding is just as harmful as not feeding enough. Even if you don't have strong lighting always give them tiny pieces of food no matter how many times you decide to feed.