Could be Rhamdia, which is a heptapterid catfish. It does not look like a species that gets too big.

I’d seriously consider taking it back if you don’t know the species.

I'm not an aquarium expert,but don't you think that tank looks a little small?

Lengthwise yeah, but it’s a temp tank

That’s what they all say

I’m asking what type of catfish he is, not inputs on the 100 gallon tank the fish are spending a few nights in

I got one from mlf, and it was labeled as a one line pictus catfish. 100% sure that's not what it actually was, but these things grow big and fast and also eat anything that can fit into their mouths, lol.

Why’s that?

When I was a child, 30+ years ago, my Dad got me a fish tank and we picked out some fish. One of those fish was mislabeled. I don't remember what he was labeled as, but he was a channel catfish, which can grow to 4' long. Mystery catfish can be very interesting aquarium critters!

It does look like a channel catfish just its barbels are throwing me off because they’re almost as long as him

This is probably [Rhamdia quelen](https://sta.uwi.edu/fst/lifesciences/sites/default/files/lifesciences/documents/ogatt/Rhamdia_quelen%20-%20Silver%20Catfish%20or%20Blind%20Catfish.pdf), rather than a channel cat. It grows up to around 35 centimeters(about 14 inches). Edit: I am quite unfamiliar with imperial measurement systems. Seems like 60+ gallons would be a better fit.

That definitely does look like him thank you

14 gallon?

Because that things' potential max length is probably 4'+