What are common cold water Monster Fish?

[johnnymax]

It seem like most of the cool looking Monster fish are tropical.
What are some amazing looking Monster fish members keep that do not require a heated tank?
Fish that would be comfortable in a 250-350 tank.
Pictures are appreciated.

Tank You!

 

[DrownedFishonFire]

Footprint is more important than gallonage IMO when I think of any cold unheated temperature in my basement is easily 55-65 winter/summer - Monster fish its automatically the Sturgeons for me from the north LOL the flathead catfish, channel cats, gar, northern, bowfins, largemouth basses there’s just too many options when it comes to large cool water - our native fish are built for the cooler waters but gets boring after a bit

I’m following this thread for more ideas too!

 

[Punjabiking1500]

At monster size uh have koi and at extra monstrous size uh have sturgeons
Small monsters are smallmouth bass , trout, salmon, and pond loaches

 

[Deadeye]

Sturgeon and catfish probably at the top, if strictly freshwater.

 

[robmcd]

Blue and channel cats, carp, certain gar species, paddlefish.....

 

[esoxlucius]

The quintessential cold water fish in the hobby is probably the koi. But it doesn't really fit in with your 250-300g set up, they're too big, as are some of the others that have been mentioned.

Do you have any smallish cold water natives in Texas? It's that big i'm not sure what the climate is like throughout that state.

I'm lucky in the uk, every native fish we have is coldwater, and my favourite by far is the European perch. One day i'm hoping to have half a dozen in my 360g. You wanted good looking coldwater fish, meet Perca Fluviatilis.....

 

[Deadeye]

Just noticed it’s specific to 250-300. Definitely not a sturgeon tank.

 

[xenacanth9]

Bowfins, Longnose Gars, Yellow Perch, and American Eels are all native to your state of Texas. Alligator gars can live in there for a little while but will eventually get too big

 

[jjohnwm]

They aren't often considered "monsters" because probably 99.999% of them don't survive long enough to attain their maximum size, but...how about goldfish?

 

[1 2many]

I believe in the wild Hoplias Malibaricus (Wolf fish) and Salminus Brasiliensis (Golden Dorado) can adapt to cold/cool water around 50 degrees Fahrenheit.
Also, Esox Niger (Chain Pickerel), Sander Vitreus (Walleye), and Catostomus commersonii (White Sucker) are big fish native to US.