The last time I had a female that wound up in this much trouble birthing, even the outcome was distressing.

The mother died shortly after giving birth to about twelve babies.  6 of them were extremely dark colored, and didn't last more than a week. Of the remaining 6, three had horribly bent spines, and I had to cull them anyway.  Of the last three one still has a slightly bent spine and two, one male,one female, were alright.

Now, I hate to cull baby fish, and so my dilema was extended, so to speak, into the next generation.

Now, I don't take "playing God" lightly at all, and can really empathize with your situation.  Yet, all I can say is, that if I was ever in this same spot again, I'd wish I had an hungry Oscar around.

Hope things work out for you.
Take care,