Dave~
I have experienced the same with my Steiny Nieva, (as you have with your OH) what I have done is let her hold for a short time, (say a week) then I pull her to a breeder cage in the fry tank (10) and it may take a day or 2, but she will spit the fry for easy removal.....That's just what has worked for me with my mouthbrooding Geos.
Ill get you OH Shots tonight, Got the Camera ready and will be rollin' They are not that big, compared to my Albios....Hard to pick out the group, as they are with Albios & Alfitrons in the 220, but may switch them and the "Nieva" group as I have Nieva coming out of my ears...You Need?
Nuthman~