i have 2 adf frogs about 2 weeks, yesterday i found one dead,no obvious signs or damage to his body,no ammonia or nitrates in the water. im using a fluval 5 gallon spec tank, i have been checkin the temperature and yesterday and today the thermometer is reading about 65 - 66, i think maybe the heat is the cause? today the remaining frog has been sittin up out of the water on a perch,i caught him doing this twice,so i think there must be soemthing wrong with the water,after a test and seeing that my ammonia and nitrates and nitrites are all down i think maybe the water is too cold for the guy.im using a fluval 25 wat heater,its slim and black and fits in the back of the filter box.
it says on the box its preset to 75 degrees and will stay there,obviously this is not happening, what should i do? im gonna put the frog into my 14 gallon with my preset heater in there as i know its at 76 in that tank,can i return the heater to petsmart,is there a better one i can get that is small enough to fit in the small spot on the back of the tank?