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so I am looking to replace my heater in my Nuvo 40. Right now I am running a Finnex HMX I got it one month ago and I have it set to 78 degrees and the display says the tank temp is 78 but after putting 2 thermometers in the tank the water temp is only 73 degrees. if it was only one degrees off I would keep it but 5 degrees off is crazy. It's not like it 5 years old. it's onlyONE month old so looking to replace it and looking for so advice what's a good heater? and ones to say away from? Thanks all for the advice



