First, you don't need to feed your anemones at all in order for them to be happy. Also, splitting is a pretty violent process for the anemone - the mouth (among other things) as just been completely split in two. Give it a few weeks to heal before attempting to give it good. Remember, do not assign human qualities such as "hunger" to this animal - thinking if you offer it food and it accepts that means it's "hungry". They respond with instinct and chemical signals, and assuming it's healthy if you offer food it'll latch on.
Second, those anemones look a bit bleached.
Age of tank?
What are your parameters (with numbers?)
What are your lights
Size of tank?
Other inhabitants?