Is this the fish you posted a video of in your other post? If so, read my answer there- she is not going to have babies unless she spawns with a male. Even then, the eggs will almost certainly be eaten if she is in a community tank.
There is one type of tetra that practises internal fertilisation- the swordtail characin. With these fish the male fertilises the female internally and she later lay fertilised eggs that then hatch. But this is a weird and wonderful exception- the norm for tetras is that eggs have to be fertilised at spawning time.
But I was wondering will I need to give the fry any speical food or are they ok to have the flakes which put in the tank for the other fish?
