This vintage aquarium heater from the 1960s adds a touch of nostalgia to your fish tank set up. With a 50 watt electric capacity, it is perfect for a 10 gallon tank and suitable for all water types. The turquoise old fashioned model is sure to catch the eye of any aquarium enthusiast. I plug it in one of my 5 gallon tanks for a bit and it seems to work okay. I hope someone can use it it's about 8 in tall.