I checked this morning with my thermometer, and it said the water was about 80 degrees. Then I added in my betta at night (because I was letting the water sit for 24 hours) and then he was suddenly extremely, extremely active.
At first, I figured it was a good thing - he seemed to be exploring every single nook and cranny of the place! Swimming between columns and everything! But then I remembered that I had read somewhere that you can tell if your betta is too cold if it moves very sluggishly through the water. You can tell if it's too hot if it darts around being very active. Is this true? I need to get another heating... apparatus, because I've heard bad things about the heating pad... though I'm not sure if I can even get one. (I don't have a credit card, and my mom is very, very paranoid about using her credit card, and Petco is quite far..)
Anyway, to summarize: if my betta is swimming around a lot, does that mean he's too hot?