Urgent: Housing 1.5" & 1" sword-tail with 2.5" mama swordtail

[Apoorvthegreat]

Guys I'm planning on housing my swordtail fry with their mama(1.5" and 1" with 2.5"). Is it a good decision? Can we say with certainty that she wouldn't eat them/ kill them?
The tank is planted : )

 

[itiwhetu]

They will be fine