Well, I have just fed my opae'ula and I am still feeding them once a week. I think they are really used to their new habitat. It's funny. When they moved in, they were all over the place but they are kind of just floating around and resting. When I also fed them, only a little of them went up. There are still no babies! I wonder if it is a coincidence... Anyways, I guess they are not the little balls of energy they used to be!