That is the all time pairing percula or ocellaris and magnifica. That is one of the most shown photograph as an example of anemonefish and host anemones
In this pic you can see the stages an anemone goes throught as it regains its zoozanthella(sp) Also all these pics are taking early am when the lights are ramping up.
In the pics above the one on the left is clear, right is white and top is tan/coloring up/healthy