Moduoduo Adjustable Fish Tank Heater With 2 Powerful Suction Cups Is For Marine Saltwater And Freshwaterlength Of The Heating Rod: 10Inchthe Length Of The Wire: 2.62 Feetvoltage: 120V, 60Hz100 Watt, For 10-20 Gallon Aquariumtemp Values Range: 68 To 93?Note:

• Do Not Electrify The Heater Outside The Tank, Preventing Scalding And Malfunction
• The Heating Rod Temperature Should Be Adjusted According To The Actual Room Temperature Of The Fish Tank.
• Please Clean The Heater Regularly And Keep It In Good Working Condition.
• When You Need To Remove The Heater From The Water, First Unplug The Power Cord And Carefully Remove It After Cooling.
• Note That The Water In Tank Cannot Be Too Little When Changing Water6.Do Not Bury The Aquarium Heater In Sands Or Contact Directly With The Glass7.Please Use The Heating Rod In A Depth Of No More Than 3.9 Feet.