I was sitting by my tank trying to get pictures of my new fairy wrasse and he jumped out into the back chamber. I started pulling things out to get him and saw that in the return pump chamber there was almost no water and my heater (Via Aqua) was exposed. After unplugging everything, my water level dropped a little over half an inch. Should I replace the heater? I don’t know how long it was exposed and if it came on in that time.