Calentador sumergible para acuario, calentador de tanque de pescado ajustable compacto fiable Betta, resistente al calor, con controlador de temperatura externo, 100 W/300 W, 10-60 galonesFor Fish Tank 30 60 gallon300W aquarium heater, voltage 110 120V, power cord is 5. 4ft, please choose the right wattage aquarium heater according to our size chart. Don't suggest use this heater in sump or a tank with turtles in Reliable & Safty Protectionautomatically shut off when fault occurs. Effectively maintain the tank water in the constant temp you set, stop heating when the water temp is 1. 5 2 above the set temp and restart heating when the