Originally Posted by Skeeter4158098
Right now I have a Aqueon pro 150 heater. The dial is set at 82-84. I have two sticker thermometer that both read 78. My question is. Is it to small for my tank. I bought it online from PETCO and my local store says that they will exchange it (plus the difference) for a larger one say a pro 200 heater. Should I switch or am I ok?
Good trick to test the thermometer probe for accurate reading stick it in a cup of ice full then add cold water should read 32 degrees if higher you know the heater is defective and should exchange it other than that you dont need a larger heater that one is fine.