I agree with the varied diet, I don't necessarily agree with the amount of feeding, like three times a week seems like alot of food for a critter that doesn't get fed that type of food in the wild that often. However:
It will depend on what type of anemone you have, but remember they are photosynthetic creatures, they need good strong lighting more than they need to be fed three times a week.
Just my opinion based on 5 BTA's and a rock/flower anemone in my tank.
Thomas