I'd go with Regalblue's suggestion. You'd probably have better luck stripping her, or moving her to the tank you were going to raise the fry in and letting her spit there. I try not to put my fry in hanging or floating nets. The fry can get damaged/sucked through the net from the bottom when they rest.
Not sure that you need this but I made a few cheap floating fry "baskets" to keep my fry in for the first few weeks. (I found it easier to make sure they were getting enough to eat when they were in a smaller area.) All you need is a cheap plastic Glad container, rubberband, foam hair curlers or fishing corks, and a really small drill bit & drill. When drilling the water flow holes, drill from the inside of the container so the inside will stay smoother. You can scrape off any rough plastic around the holes with sandpaper if needed. Don't drill holes in the outer ring around the bottom. I've noticed that fry tend to lay there a lot when resting. (I've also used these to keep new fry safe from fry that are a few weeks older and already more active.) Drilling the water flow holes was a lil taxing but I probably got carried away.
Hope all goes well and your raising fry soon!
