I have a heater that kept overheating this past summer so I unplugged it since they don't need one in the summer. I think the brand is tetra if I remember right. Anyways, I need a new one with fall here &- winter on the way. I have tetras & danios as of now. Any heater that's really reliable & lasts longer? Maybe one that has a digital thermometer on it, idk. Not too expensive too.