Their original range in the u.s. was very very vast until they were slaughtered in the 50's. Im in ohio and they ust to b very common in the ohio river which recieves snow. I have 5 gators and keep them all around 70-78 degrees. Just because they could tolerate the colder temps doesnt mean its best. 68 degrees should b the lowest temp for them id guess....their range now is somewhat south...texas, lousiana, florida, kentucky which all have a fairly warm seasonal temp.
Sent from my SAMSUNG-SGH-I747 using MonsterAquariaNetwork App