I use whatever's onsale at DFS every year in the christmas shopping season... I agree, heaters SUCK and they all fail on a long enough timeline. That's why I buy a new one every year. We spend thousands on livestock, and let a ~$20-30 heater kill them all?!?!?!? No thank you. Christ, I spend like $150 every two years on halide bulbs, I can't spend 1/5th of that on a heater every year? Been doin this forever and haven't had a heater fail on me yet. Once I get my new one it goes in the tank, the "old" one is placed into backup, the previous backup becomes my mixing heater, and the previous mixing heater becomes part of the landfill in niagara falls. FWIW, I use a 250watt heater on my 65g, seems to work fine