What species of fish is this!?

[duanes]

Since I am quite uninformed about rainbows other than keeping some as dithers, arguing with me on that could be a quite rewarding endeavor. But when I saw the OPs location as Brisbane, rainbows seem a reasonable assumption.
Hard to see the actual fins in the pic, so here is a little cropping .

That said my first impression was Procoptopus similis (an African Lampeye), but since they is relatively rare in the hobby, I poo poo-ed that idea.

 

[J. H.]

It's not a rainbow. I see only one dorsal fin. Some kind of killie might make sense, but the only killies I have ever kept were Poecillidae, Xiphphophorus and Panchax, so I don't really know them.

 

[Itsadeepbluesea]

Possibly a Turqoise Danio?

 

[JesseDavidson]

Since I am quite uninformed about rainbows other than keeping some as dithers, arguing with me on that could be a quite rewarding endeavor. But when I saw the OPs location as Brisbane, rainbows seem a reasonable assumption.
Hard to see the actual fins in the pic, so here is a little cropping View attachment 1304663 .

That said my first impression was Procoptopus similis (an African Lampeye), but since they is relatively rare in the hobby, I poo poo-ed that idea.

Yeah there is definitely only one dorsal fin.

 

[JesseDavidson]

Possibly a Turqoise Danio?

Hmm it actually looks very very similar to some images of the turquoise danio however there's no striping at all on my fish.

 

[JesseDavidson]

I would love to get more detailed pics of these guys but they are the speediest little things, and my pond is quite large.

 

[Itsadeepbluesea]

Hmm it actually looks very very similar to some images of the turquoise danio however there's no striping at all on my fish.

View attachment 1305117 View attachment 1305118

Yah I did notice slight differences. I attributed it to genetic variations. I figured it was a shot in the dark.