So, here's a picture of the set up I'm running. It's roughly 112 gallons, and I'm running a 300 watt heater in the sump. My water temperature isn't up to the 26 degrees I want it at ( not exactly sure what it is ), the bristlenose seem to be coping but the bolivian rams are very lethargic and I'm putting it down to temperature. I'm just wondering, is it my sump design that isn't allowing the heater to heat the water properly? Should I add another heater to the sump? Or should I add another heater into the tank holding the Rams? Thanks in advance! 



Thank god winter doesn't last very long over here haha