Review on 🐠 PGFUNNY 25W Aquarium Heater, Smart Thermostat Fish Tank Heater for Betta, Slim Design Fits 3 to 5 Gallon Tanks, with Thermometer Strips by Andrea Bone

Perfect for my 3.5 gallon aquarium where I keep Betta. Slim and handsome compared to some heaters, it is not bulky. This keeps my 3.5 gallon bettas at around 80 degrees. this is ideal for fighting fish. I saw him between the ages of 78 and 82. The little timeline they give you isn't the most accurate, you have to slide your finger across it to see the reading, but it does keep the water in the tank nice and warm. It also has a red indicator light that lights up when it's actually heating the water, which is useful and important.