On a side note... I am not liking the Fluval E series heater on the 65B in the garage tank. I cant get it to heat up. In the puffer tank inside the house where the room temp is higher it works fine. I had the same issue with these on the 300 gallon and I pulled them out and put in SERA heaters that worked great. I have some Aqueon Pro sitting around that I may use instead. Not happy with overall performance of the Fluval E series.