Temperature Extremes

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FishFreak95

Piranha
MFK Member
Jul 3, 2009
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New Mexico
I just found out that fathead minnows can survive in temps up to 100 degrees, not 110 though. But Ghost shrimp and snails can, lol.
 
I dont know whether to be amazed at the fishs tolerance of hot water or disturbed that you most likely put fish on a stove with a thermometer.
 
The winter before last, I came home after thanksgiving trip to find a tankful of dead cichlids, victim of a broken heater...all my catfish(syn. Multipuntatus) died as well, except for a syn ocellifer. When I was cleaning up the tank, an absolute dreadful task, he plopped out of his usual hiding place, inside a hollow stump, and didn't seem to suffer at all with water temp in the mid fifties.

He is still with me today, easily the oldest of my fish. He was already full grown when I got him, and that was 10 years ago.
 
I dont know whether to be amazed at the fishs tolerance of hot water or disturbed that you most likely put fish on a stove with a thermometer.

Lol no. I had a little outdoor pond with a black external filter, the sun turned it into a water heater. The pay week I was putting a lot of ice. one day I forgot too and this happened.

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Lol no. I had a little outdoor pond with a black external filter, the sun turned it into a water heater. The pay week I was putting a lot of ice. one day I forgot too and this happened.

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I'm not surprised that fatheads can handle hot temperatures...after all they are hardiest baitfish and also important forage fish in shallow lakes and also in most polluted lakes too. I was doing surverys on the lakes of SW Minnesota this summer for my internship and most lakes were very shallow, dirtiest and warmest, basically bullhead lakes. Fathead minnows was only one forage fish that able to survive under these conditions.
 
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