Its winter now and I noticed my FBT water temp is only getting to about 72 during the day and dropping to 68 at night. I have a 20 gallon low water setup with filter. Is this to cold for them? Should I get a underwater heater?
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2 adult WTF's and 1 baby, all males.
3 male FBT's and 1 unknown still.
4 male Red Legged Walking Frogs (Kassina Maculata's)and 1 female.

