I've had my betta for about a week now, and I got the heater at the same time I got him, though I didn't have a thermometer. I saw the heater going on occasionally (indicator light), but now that I have a thermometer, I see it only keeps the tank at 74! It's only a 1.5 gal tank, so there isn't much water movement to circulate the heat (with such a small tank, even the little filter that came with it I think would be too powerful for my fish). Any suggestions?
I paid about $15 at Walmart for this heater, and as a college student I can't really afford to get a super nice one, but obviously I want my fish to be happy and warm. Any suggestions on a good heater in the $10-$20 price range, or if there is a way I can enhance the effects of the one I have now?