API 3-in-1 De-Icer, 1500 Watt Brand_Mammoth Pet Products and that is no problem

and that is no problem with this unique formula

5 x 11 inches high

Self Venting

For a feeder that can be easily removed for filling and cleaning

API 3-in-1 De-Icer, 1500 Watt Brand_Mammoth Pet Products and that is no problemThis 3 in 1 De icer easily converts between a floating, sinking or drain plug de icer. To use as a sinking de icer, simply remove both the cover and float, then turn the unit over to rest on its sturdy feet. To use in your tank's drain plug, remove the cover and float, and use the patented drain plug adapter to route the cord through the drain hole. Energy efficient operation keeps the entire tank (recommended for 100 300 gallon tanks) ice free