Review on IOAOI 50W Aquarium Heater for up to 20 Gallon Tanks - Shatterproof, Suitable for Marine and Fresh Water - Engineering Plastic Tube & Stainless Steel Inside - Adjustable Temperature by April Schol

It was hard to find a nice heater at a reasonable price, but here it is! This heater has worked well in my 10g tank for the past 3 weeks. PROS: I love the matte black finish with gold text and the simple design. The included suction cups work very well - much better than my 50 watt cobalt heater. The high-quality packaging is also a pleasant surprise. CONS: The functionality is nothing special. It doesn't display current temperature readings and doesn't have a detailed set of settings. While it is possible to rotate the spec text backwards, the power cord will require some practice/flexing to do so. SUMMARY: A great purchase if you are looking for a simple yet discreet heater.