Someone gave me this fish thinking it was a guppy, but it's obviously not.
I own Platy and Guppy and it seems to be getting along fine with them but I have no idea what type of fish it is.
It's around the same size as a guppy, here's the photo.
The tail looks like a little red tailed barracuda
Edit. After looking at it again, no it doesn't.
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