Review on 🐠 Adjustable Aquarium Heaters - Hitop 50W/100W/300W, Submersible Glass Water Heaters for 5 – 70 Gallon Fish Tanks by Christine Ellis

Overall this is a good little heater for the price. The inclusion of an adjustable temperature is a huge plus when compared to unregulated heaters at the same price. The temperature settings quoted are not accurate (usually for heaters in this price range) so don't believe it, but as a good fish farmer you already have a thermometer in your aquarium, right? It's a bit big for a 100W heater compared to big brands that cost twice as much, but it fits nicely in the back of a 10-gallon tank. It's packaged well and feels really strong and high quality in the hand and seems to have enough power/warmth up to 80 degrees. There are no complaints about the price.