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[Bsfishes]

There has been a lot of hobbyists in southern wi doing summer tubbing with rainbow fishes and other types. What is everyones thoughts about winter tubbing with something like mudminnows. I have 13 of them and was thinking about putting six outside. I don't know if I should wait til closer to spring. I've been told I should use a stock tank heater. Has anyone done this or has there been any discussion of this?

[ShadetreeIchthyologist]

Mudminnows are pretty hardy. If your tank will not freeze solid you should be fine. If you’re going to run a heater I recommend a lid of some sort. Helps prevent a lot of energy loss.