Man that can be a whole-lotta mollies if you're not prudent about it.
They are delightful fish though. Like little puppy dogs happy to see you.
Makes me happy I requested my 2 platys and 2 mollies all be the same sex when I bought them. Wound-up with all females and luckily, if any were preggo when I got them, I have no additional live-bearers in the tank.