Hi! I have one tank that is 2.5 gallons and has 2 African Dwarf frogs. I have another that's 4 gallons and has a Betta. I have 1 heater that suits a 2-5 gallon tank. Until I get a new heater, which tank do you think needs it more? Thanks! :)
P.S The tanks are in my basement which is not heated...