OK, winter topic...discussed over and over every year...if you can't take
redundancy, go away...otherwise let's discuss.
In summer only, you can try (and I have) these fish and bring them in in
...
White Cloud Mountain Minnows
Just so everyone knows, white clouds will definitely survive in the
winter.
These fish are basically indestructible and I have a 13,000g pond full
of them

.
I understand that counties will actually load trucks full of them and
drive near over passes and fire the fish out a hose into the standing
water to eat mosquitos.
They are rumored to be able to live at a pH as low as 4...!
I haven't tried that pH however, but I can honestly say that I don't
think I've seen even a single dead white cloud minnow in the thousands
I've got now.