What Fish Is This?

[q1w2e3r4t7]

Hi guys, 
 
Bought some Neon Tetra & Guppies from the local aquarium shop, to find an extra surprise when we got home.
 
Does anyone know what type of fish he is ?
 
Blue coloring can be seen around eye, black dot on dorsal fin.
 
Thanks for any help guys.
 



 
size compared to Guppy

 

[Munroco]

Is it a tetra? I can't see an adipose fin (tiny little fin just in front of tail on fishes back).

 

[nic1]

he could be a young x ray tetra?

 

[Munroco]

How about this one? looks very similar http/www.seriouslyfish.com/species/brevibora-dorsiocellata/

 

[q1w2e3r4t7]

Thanks guys.
Munroco, i must say on first viewing the 'Eyespot Rasbora' does appear very very similar. 
Thank you very much, i will be using that guide to monitor him.
 
Thanks again.

 

[Alexbarrett2000]

Doesn't it look like a lampeye?