What species of rainbowfish is this?

[Austin.]

I rescued the fish from a walmart that did not even feed their fish every day. This fish had ripped fins and missong scales, but I overlooked those features and felt bad for the fish. I had then bought the poor fish and when I asked what species it was, the store did not even know. So does anyone know what species of rainbowfish this is?

 

[goatnad]

My guess is melanotaenia Australis.Melanotaenia australis

 

[Autumnsky]

Maybe this one,
Australian Rainbow
(Melanotaenia fluviatilis)

https://www.liveaquaria.com/product/3199/?pcatid=3199