I typically strip, but since I've added some 10g's to my setup, have a little more ability to isolate the females and let them spit, so I might try that with her. I recently put one of the specklebacks in that tank with some ABN, comp and cyp fry. It's the tank directly next to the 75 where the cyps and foai are, so she could see the school. She still freaked out whenever I approached the tank. Just wasn't comfortable in there. As soon as she spit the fry I removed her. I liked that I didn't have to handle the fish, but isolation was not without its own stress.
I don't know that there's a single optimal ratio. I never got them to breed until I had 3m/1f, but since I was making lots of other mistakes, I don't think it was the ratio that mattered. The foai males aren't too hard on each other so you can get away with more males. Opthalmos are a little different. My male boops were always destructive. I now have them 1m/2f and all seems well, but it also means they aren't lighting up as much as they were with multiple males in the tank. I've got 1-2" fry with both groups that I'll add back in to expand the group's size. I guess common sense prevails. If you want to breed them and not deal with too much aggression, one male and lots of females, with maybe a spare male in a separate tank. If you want to watch the behavior and see them at their best and are prepared to deal with the occasional loss of a fish, go with more males.
