Ok, so I'm setting up my 140 gallon oscar tank . I know it's better to use two heaters for distribution of heat and a safety measure. But my question is , would y'all rather buy 1 name brand heater (jager 300 watt rated for 159 to 2xx gal) or two cheaper heaters 200 watts or so a PC. I'm on somewhat of a budget ( story of our lives), and buying two jagers would be a little expensive.