Unknown Tetra ID

[Omrit]

https://imgur.com/a/PIXVYPX

Saw this guy today labled as a "long bodied hatchetfish" which doesn't seem to exist. He has a little black spike on the back fin, teeth, and is incredibly mean for a tetra. He was grabbing a 6 inch dojo loach at the fish store.

I can take better pictures later if needed.

 

[Deadeye]

Gnathocharax species?
So an arowana tetra?

 

[FJB]

Triportheus sp., possibly angulatus. A wonderful fish, needing surface for (lightning fast) swimming at top and medium levels. Insect eater but will take flakes, very assertive at feeding. Absolutely not aggressive, always swimming. Used to have a group of three.

 

[FJB]

By the way I bought mine from a fellow at a meeting at the Boston aquarium society in 1999. Never seen them available again. However, they are not rare in their habitat, but I venture a guess that they don’t travel well, similar to Hemiodus spp.

 

[PhishMon84]

def looks like triport hatchets as a previous member mentioned. they school well, grow fast and i cannot imagine them in a 4' tank. my 7 are all over the place in a 180 with a gyre type wavemaker running at 50%.

 

[PhishMon84]

out of stock now but they are typically easy to source if you're willing to get fish shipped- which in all honesty is typically the best way to get groups and rare fish.

 

[PhishMon84]

Dusky Narrow Hatchetfish (Triportheus angulatus) - Aqua Imports (aqua-imports.com)

 

[Omrit]

Triportheus angulatus seems to totally fit! The store was begging me to get rid of him as he was attacking the loaches. They had him up for 6$ for over a month with no takers.

My tank just has plants currently, so was not too worried about taking him.

Is he going to be fine alone? Doesn't seem like getting a school is an option given the rarity. Is he perhaps so vicious because he has no school or maybe the small quarters were making him that way?

 

[The Masked Shadow]

eon aquatics

 

[jjohnwm]

Doesn't seem like getting a school is an option given the rarity. Is he perhaps so vicious because he has no school or maybe the small quarters were making him that way?

I see this fish frequently, in good numbers, on the stock list of a local importer/retailer nearby...so not rare. I don't recall the price, as I had no real interest, but the price didn't jump out at me as being particularly high.

And yes, those two factors could definitely be contributing to his anti-social behaviour.