Lowest temp for some fish.

What are the lowest comfortable temps these guys can handle. Also warmouth and Longears. I'll be setting up a cold water tank pretty soon for my sucker and darters, and I need to put my two sunfish in it until they are big enough to go with my bass.

What are the lowest comfortable temps these guys can handle. Also warmouth and Longears. I'll be setting up a cold water tank pretty soon for my sucker and darters, and I need to put my two sunfish in it until they are big enough to go with my bass.

Where are the warmouth and longears from? I would say 60F would be the lowest for them to maintain normal activity. Too far below that and they start to slow down quite a bit.

As far as sticklebacks and mudminnows, I think they would stay pretty active down to about 50-55F.

Where are the warmouth and longears from? I would say 60F would be the lowest for them to maintain normal activity. Too far below that and they start to slow down quite a bit.

As far as sticklebacks and mudminnows, I think they would stay pretty active down to about 50-55F.

I don't know what species of stickleback or where the fish are from but....
I think people way underestimate how active fish are at cold temps.
Now, granted, I'm talking about fish acclimated to New England climate, but I think it's true generally.
I icefish all winter long. Virtually every species of game fish, including introduced southerners such as largemouth bass, will feed and hit baits and fight vigorously all winter. I have found fresh food items in the stomachs of every species I've caught. Some, like trout, pickeral, pike and perch, feed heavily with beanbag packed stomachs full of minnows, bugs etc. [I once had a giant water beetle swimming live in my sink after cleaning a rainbow trout that had been dead for hours ]
Over Thanksgiving I got golden shiners by breaking a hole in 2 inch thick ice and dropping a minnow trap baited with bread. I filled the trap in a 1/2 hour.
The key is the water has to be deep enough to stratify, with the most dense water at the bottom @ ~39 F. In shallow water that doesn't have that warmer layer, the fish do slow and probably stop feeding.
Based on that, I'd estimate 39 F to be around the active limit of cold tolerent fish.
Obviously, some cold intolerent fish [sailfin mollies come to mind] will be adversely affected or killed at those temps.
I don't think the species you mentioned would be harmed by water ~39 F.

The Warmouth and longears came from Zimmermans.
The stickleback is a brook stickleback, and a central mudminnow.
I was just going to have the tank from the mid 60's to low 70's. I just wanted to make sure they would be comfortable.
There will also be a current, but I'm making a big planted area that isn't in the current.

I'll back up what was said with the sticklbacks and mudminnow(a potentially combative combination, btw)...they will be comfortable and active at any temperature a tank kept indoors, anyplace, is going to reach.
(opps...should add, any LOW temp that an indoor tank is likely to reach. You can certainly cook em' if you aren't careful!)

These two fish were caught in the same place. A small pond that also contains black bullheads, green sunfish, and the occasional pirate perch. The pond probably isn't more than 50 feet across and 30 feet wide if that. It really only gets about 2 feet deep.

These two fish were caught in the same place. A small pond that also contains black bullheads, green sunfish, and the occasional pirate perch. The pond probably isn't more than 50 feet across and 30 feet wide if that. It really only gets about 2 feet deep.

Your fish from Zimmerman will be fine. They're from Ohio, so they can withstand any cold temperatures possible in a house. The fish down here, however, will start to slow down around 55-60F. My greens won't even chase prey if it's below 55F.