I had some Gymnogophagus yerbalito fry that I missed when draining out a fry tank. The ones I missed remained in the tank in an inch of water, on my basement floor, in Milwaukee, for in an entire winter.
The floor temp easily dropped to 50'F, and since I didn't know they were there, they were never fed, and had no circulation. I found them in spring when I noticed movement in the water, out of the corner of my eye, they were now an inch long and over summer grew into nice adults in my out door pond until October, where water temps hit highs in the 80s in Aug, and dipped into the high 40'sF in fall.
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