Columbian Tetras?

[Phantom]

I added six (or so I thought) Columbian Tetras to our tank, and upon closer examination only 3 of them are actual Columbian. The other three have almost identical coloring but a slightly different body shape, and check out the Dorsal and anal fins. They school with the Columbians as well, but tend to stay close to each other as well while in the school. Any Ideas as to what they might be??

 

[Phantom]

Does anybody think they night be a danio??

 

[ennbee]

They look like young Dwarf Neon Rainbows (Melanotaenia praecox) to me. I have four of these in my 30 gallon setup.

 

[The-Wolf]

They look like young Dwarf Neon Rainbows (Melanotaenia praecox) to me. I have four of these in my 30 gallon setup.

100% aggree