My son has two tanks so we are always looking for good heaters or consumables for them. I was excited when it showed up so I grabbed it. We've been using it in my son's 20 gallon tank for a few weeks. Regulating the temperature in the tank and keeping it fairly close to the set one has worked well so far. It can fluctuate by a degree or two every now and then, but that was typical of other heaters we've used. In fact, some of them got rejected even more, so we're glad it's working well. It's a good size and fits perfectly in the back corner of his tank. I think it'll serve us well in this tank, and it seems like good value for the money (it's $17.99 at the time of this review). It's way cheaper than the one I just bought him in November 2021 and that's already out so we got this one. It is easy to set up and read in the aquarium. Overall we think this is a good little heater and worth the money.
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