I've been using these for years. I keep a lot of nana aquariums and I finally gave up on the other brands that are 10 watts. The other brands are better in their small size but terrible quality, temps all over the place. I kept trying to use them because of the size but I lost too many fish. I'm sticking with these. If you can fit it in the aquarium, the clear glass heater really isn't very noticeable. I highly recommend them. Aqua clear did make a "Compact Mini" that was shorter if you can find one. Sometimes people list it as a mini but it isn't if the package doesn't say "mini".
Verified purchase: Yes | Condition: New
Purchased this for my 2.5 gallon Betta tank because all the big fish websites said you need a heater in your betta tank. Apparently bettas like water around 78 degrees, even though I asked 30 people in real life if they used heaters and all of them said NO and their bettas lived 2-3 years. Still, I did not want to follow their lead because I trust fish websites more! lol So I purchase this heater because the fish websites recommended it. It took some tweaking before I figured out which way to turn the knob - I thought I was turning the heat down but actually I was turning it up and I couldn't figure out how to read this thing. I actually still don't know how to set an exact temperature, but by trial and error I got the temperature to 78 degrees in my tank and it holds steady there all day and night no matter what my room temperature is. Therefore, I am very pleased with this product and recommend it!Read full review
Verified purchase: No
It takes a bit of time to get the right temperature you want. I’m currently cycling my tank and after trial and error I got the perfect temperature. My tank now stays between 78-79° F. I also appreciate the light that signals if the heater is on.
Verified purchase: Yes | Condition: New
Amazingly bright light that made a huge difference over my tank.
Verified purchase: Yes | Condition: New
Very good
Verified purchase: Yes | Condition: New
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