Oh, no it's been filled. I just do 25% water changes everyday for my turtle.
and the heater is on the bottom so it's never out of the water..except for 2days ago when I realized that I had it out of the water for 1 second..
i forgot to add that I saw some squigly fumes underwater coming out of the heater cage. Do all heaters do that when warming up? Or is the plastic cage that surrounds the heater melting??