I only have two in a 60 . A Red Velvet and Melanurus and they’re fine together. Planning on adding at least 2 more to the mix. So yes it should be fine.
I have three in a 100g. A Clown Fairy, Carpenter's Flasher and a Yellow Corris. No issues. The Carpenter's was there first so it chased the Clown Fairy for about the first 24 hours then settle down.