davo said:otos are from the tropics of s. america and so i would think they'd thrive better in warmer water. planetcatfish reckons 21 - 26°C and mine are around 26 and doing fine. (though one did die yesterday leaving me with 7
While they are tropical, if you acclimate them they can handle cold temps. I had a school of about 20 in my 135 pond.. quite a while ago... My mud puppy ate him... now that was a cool little amphibian.
