I have raised 100s of Cyp fry. Around day 22, I'd put the female into a separate "box" in the same tank and let her spit. There is no need to strip unless the female is holding an abnormally long time. Usually somewhere between 22-28 days they spit during the night.
The female will have a harder time eating bigger things for a day or 2 after spitting. It is almost like their jaws are sore, they don't want to open widely, or something. Make sure you offer her small stuff like 0.5mm NLS Grow. Depending on her health/skinnyness after spitting, you might want to keep her segregated for another day or 2 so you can fatten her up a little before setting her loose again to compete for food.
I have used floating clear plastic soda bottles with many holes punched outward and flap lid for access. Some rubber bands and small foam pieces keep it floating horizontally. Cheap, easy, reusable, esp if you have numerous females holding at the same time, which usually end up happening once they all get in the groove.