The way you have it set up will be fine 
Nice thats what I was hoping.The way you have it set up will be fine![]()
You could always just put it on a timer.I have almost the exact same setup. I have 32 gal container that I use to collect and store RO water for my weekly water change. I put a medium size heater in it for the winter and I leave the fountain pump that I use to pump my water to the tank. Whenever I remember, I plug the pump in to circulate the water for a few minutes. I try to do that once a day.
It has crossed my mind before but not that pressing.You could always just put it on a timer.