AT THIS TIME I HAVE A IWAKI DURING THE SPRING AND SUMMER IT OVER HEATS MY 180 TANK WITH THE HEATER OFF THE TANK REACHS 95 SO WITH THIS SAID IM BUYING A NEW ONE I HAVE TWO IN MIND ONE BEING A LITTLE GIANT AND THE OTHER BEING A DANNER MAG DRIVE ANY INPUT WOULD BE GREAT i need to buy one in the next two weeks