So, have the tank and everything set up since probably 9 pm. It is now 4:30 am, and temp still is at 68 degrees. The thermometer is a bit hard to read, even with glasses on, but it is between 68 and 70. It should be a bit warmer by now, no?
So, might complain to Chewy, see what they offer. Maybe its defective. Maybe I didn't give it time to get used to the water before plugging it in. Last few times, including right now, the light is off on the heater.