It does look like she's holding. What are your goals for her? Is she being picked on? Are the fry particularly valuable? Do you just want to go with the flow and enjoy them?
My preferred method is to put enough rubble areas in the tank so that when she releases the fry, at least some will survive in the rubble piles. Rubble piles against the glass allow you to see the babies. You can drop a couple sinking pellets in the rubble to get a little more food to the babies. Obviously you will lose a considerable amount of fry to other tank mates. But it is really neat to watch the babies grow and hide from the bigger fish. Eventually they will get big enough and brave enough that they become part of the general tank population. If the female gets too thin from frequent batches of babies, I'd take the male out and let her regain her condition in the main tank. She's already stressed from having too many babies and moving her will stress her too.
If you really need to have all the babies survive, you can move her to another tank. I wouldn't move her until you think the babies are about ready to be released. (My foggy memory says about a month, but I'd double check that if I were you! It is probably different for different species and my memory may be really incorrect!) If she is moved too early, the stress may cause her to spit the eggs or immature babies and it will be harder for you to do the job than it was for her to do it. Even if you get the timing right, reintroducing the female to the main tank can be challenging. Often the male will harass her a lot.
I'm not sure what a 2 way plastic breeder is, so I don't know if that would be a good idea or not.
wren
