Review on 🐠 EDOTFISH Submersible Aquarium Heater - Stainless Steel Fish Tank Water Heater with Auto Thermostat by Michael Cox

The aquarium heater is very good. Stainless steel means you don't have to worry about breakage, and it even has a warning light (top on the opposite side of the dial) to show when it's actually getting hot. And the protective cover protects your fish. It has a US plug, so it's US ready. However, I have to make a correction. The same heater with the same dimensions (but with a different plug) is sold in Europe with a power of 100 watts. The voltage there is 220-240 V, which is about twice as much as in the USA. So if in Europe this heater is 100 watts, then in the US it is 1/4 of 25 watts. And I have a US 125W heater (not for aquarium) that I tested on a small container filled with water. It heats the water much faster than an aquarium heater and has significantly more power. Now, lower power isn't necessarily bad and it's safer for your fish. Slow heating reduces exceeding the desired temperature. However, make sure that 25W is enough to heat the tank to the desired temperature.