Good fish that eat babies to control the baby population?

I have a 4O gal tank and whenever my guppies have babies, each one has minimum of 50 babies and today I just had to female have qbout 75 babies each at the same time so I need more fish that can eat new born babies. It may sound mean but it's gotta be done cuz I don't need that many! I already have female and male bettas so wat is the nExt best fish for getting the gjob done cuz I only keep about 2 babies from every batch. Also, it being able to exsist in a community tank peacefully would be even more better! And dont say I'm a horrible person eachother. Cuz I'm pretty sure I'm not