what a mouthful!
I just stripped my yellow lab tonight. She has been holding way over the 3 weeks.. Then everytime I'd get them off her and I'd turn around, she'd have them sucked back up! Serious seperation issues. (thinking labs just hold them longer from what I can tell from people on this site)
you can leave the mom with the fry for a couple of weeks after words, if in a seperate tank, she will realize that she cant suck them up after a few days or so
four weeks.