Killifish With Female Bettas

[MisssMarie]

I have a maiden group of 5 female bettas in a 10 gallon, and they're usually peaceful, I haven't had many issues since placing them together a couple of months ago. My question is, do you think I can place Killifish with them? I was thinking of adding Nothobranchius Rudwildekampi? Do you think the kill i will go after the bettas?

 

[betta fish]

The tank is just about big enough for the 5 bettas, I would not attempt to add anymore fish, killifish aren't a good choice for a community setting and are best in species only tanks.