Submersible Aquarium Heater – 200W – 13 in. – up to 75 Gallon

Excellent heater, keeps my tank temperature at the perfect level, I have read what other reviewers have said around the web that it has a clicking noise when it turns on and off, I have tank in my bedroom and I hear no clicking sound at all, and I wake at the sound of a pin-drop, these other people either get a bad heater which happens or they are just too sensitive. Aqueon gives lifetime guarantee, so you can’t go wrong, if heater is bad, contact them and you’ll get a new one. You won’t be disappointed if you get this heater or this brand heater in all their sizes, it is terrific.