This heater is perfect for my 5 gallon nano tank. The design is inconspicuous and slim with very strong suction cups. Just plug and play.

The inkbird keeps the water temperature where it's supposed to be (around 75 at the lowest and 80 at the highest) it shuts off automatically so the tank doesn't get too hot. The beta fish seem happier and it's working much better than the old 10 watt ...  Read More

I'm done with its lack of consistancy. It's disgraceful how horribly made they are. Fluval wants me to ship it on my own dime and pay for return shipping.

This heater is constantly on in my 5 gallon low flow tank. This creates a really harsh environment for anything but some hardy fish. Which stinks as this is supposed to be for a nano reef tank. My 50 watt aqueon does a much better job!