No its not it can drop to 65f at night and 21 degrees is 68f also what I do for Zeus is wrap him in a blanket or towel and that will kelp him warmer to buy mines about 70 at night
:? hmppp getting mixed advice now...... ive read in plenty of places that 21 is fine for them at night. can someone just give me the correct temperature that they need at night. i dont want to be doing it wrong for them......