Hi all, I'm new to Bettas (and to the forum), so I hope I'm posting this in the right place.
I bought my Betta yesterday and it was a semi impulsive buy. He's currently in a 3gal tank, and I need to get him some heat. I was going to buy the Hydro mini heater that was suggested in a care sheet on a sticky on this site. I'm wondering, what do I need to do to make sure the tank isn't getting super hot, or not hot enough? Do people generally use a thermometer and keep an eye on it? Or do I need a thermostat?
Also, any suggestions of a reliable and inexpensive thermometer would be greatly appreciated!