I have a 90 gallon display tank and a 40 gallon sump tank that I will be setting up. Was wondering wattage I should be looking for. House temp never gets below 65 and rarely gets above 75. I have been looking at 300 watt heaters but was wondering if I should move up to 500 to be safe. Also looking for recommendations on ones that have a controller and two elements, one will be set a few degrees cooler as a fail-safe for primary. Unfortunately Neptune Apex is out of my price range at the moment. Thanks!