I have a similar question.
I've had 4 ocellarius in a 180 (6 ft long) since they were tiny.
Now, 4 years later, 2 are paired up and lay eggs regularly. 2 others are still much smaller and have recently began hosting a new anemone 5 feet away from the mated pair.
Now that the other two have a home of their own, any chance they will grow larger or better yet become male and female and pair up?