Least killifish pond

[joeyr188]

Hello I was wondering if least kilifish could be in a 15-20gallon pond I live in Washington where it gets cold but not freezing and was just wondering if anyone has done it or if it’s possible.

 

[emeraldking]

Least killifish will do fine at lower temperatures but 15°C should be the limit to keep them well. They'll still be active at that temperature. I've experienced that at lower rates (12°C) their metabolism is going down too much.