is this that rare murderous African Blue Tetra???

[Magnum Man73 187]

that @GaryE has talked about in the past ... "they" say's it gets to 5 inches at maturity...

https://www.dansfish.com/product.detail/3595/Long-Finned-African-Tetra-(Brycinus-longipinnis)

Bryconalestes longipinnis (Long-finned Tetra)

The long-finned tetra, Brycinus longipinnis, is an alestid characin from West Africa, found from Gambia to the Democratic Republic of Congo and Gabon. It inhabits large rivers and, unusually for the genus, also moves into smaller streams and lightly brackish estuaries. Not imported often, it...

www.seriouslyfish.com

 

[GaryE33 31]

Nah, that's its short finned cousin who became a kind and gentle social worker. This other thing was blue with superlong filaments, which they destroyed on each other as soon as they met.

 

[Magnum Man73 187]

These are back in stock again… if my tank wasn’t already overstocked, I’d consider some…

https://www.dansfish.com/product.detail/3595/Long-Finned-African-Tetra-(Brycinus-longipinnis)

 

[gwand72 188]

That’s one nice fish.