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Hello! I just became the lucky owner of a male dragon scale betta yesterday and after getting him all acclimated in his .5 gallon tank i realized my room is too drafty and cold for a tropical fish. I ran to the pet store and bought the ZooMed BettaTherm mini sized betta bowl heater but i have a few questions before using it and unfortunately nobody at the pet store could answer them. First i want to be sure that this heater will be okay for a .5 gallon tank as it’s advertised for a 1-3 gallon... reviews on amazon say it’s worked well for their .5 tank but i of course want to be sure. I also don’t quite know how to go about placing it. Should i just put it in under the gravel and let it heat up the tank with Mr. Angel Butt in there or should i take him out, heat the tank, then let him acclimate like you would first introducing them to the tank?