What Kind of Tetra Is This?? Help!

[JSkeleton]

I bought a school of Diamond Tetras, which were mixed with I believe 2 other Tetras. I think they may have accidentally gave me a different kind, but I'm looking to confirm. I've attached pictures of the fish.

He/she seems to be swimming alone mostly, while the others are schooling. What kind of Tetra is this one??

Thanks!

[sanny]

Hi, this is a silvertip Tetra.

[JSkeleton]

Hi, this is a silvertip Tetra.

Silvertip! Thank you my friend

[sanny]

Welcome:)