Hello bettafish members! Newbie here :) I have recently bought my very first betta fish. He's a little halfmoon in a 1 gallon tank and until I decide when to get a bigger home for him I would like to know what type of heater I can be using for him. I prefer it to be specifically for small tanks, safe and adjustable. I currently have the Marina Betta Mini Heater that I got yesterday but I'm so afraid of leaving it on while I sleep or got to school/work for fear of it overheating or something going wrong. My room drops to 68*F so I need one! Unless you agree I should be ok with the marina one. Thanks!
PS he seems super happy and active even when his water is cold. I'm just want him to be extra comfy.