5-Key Button Model hygger 15W/25W/50W/75W Mini Submersible Aquarium Heater Fish are cold-blooded animals, which means they can't regulate body temperature like humans and other mammals. Whether at sea or in an aquarium, they all need the right external temperature to survive. The aquarium is an artificial environment, not a natural habitat for fish. Therefore, the aquarium owner should work harder to maintain the proper water temperature. Mini Size Small size heater rod, 5.9ft long power cord. It is compact and does not take up space, and can be installed in any corner without being obtrusive. It can also be placed in some fish tanks with a narrow black back hidden compartment (where the water pump filter material is placed). External Controller With an external controller, you no longer have to worry about the danger of wet hands when setting up. This version is a single 5-button version（78°F、82°F、86°F、90°F、94°F）, and only 5 temperatures can be set and selected. Simple and easy to use. High Quality Material The surface is Teflon, anti-corrosion and prevents rust. The outer shell is made of stainless steel and heats up more evenly. Heating material quartz glass + nickel-chromium electric heating wire, explosion-proof and fast heating speed. Sealed Waterproof IPX8 waterproof to reject leakage. Adopting fully enclosed glue filling technology, the insulation does not leak, safe and reliable. EYE-CATCHING APPEARANCE COLOR The heating rod body has a turquoise, close to mint green, a very fresh and lovely color. Suitable for small tanks with colorful landscaping. It can be integrated with most landscapes. In addition to heating the main function, it can also be used for decoration FOR FRESHWATER Easy to wipe clean, no need to disassemble, no gaps, no need to worry about fish getting stuck, suitable for small fish tanks. 5.9ft Extra long power cord, standard certified US plug. Strong suction cup, firm and stable. Can be used in turtle tanks. Specifically designed for mini tanks. Mini Submersible Aquarium Heater --- Installation Location Tips Don't come out of the water. Can be installed vertically Can be installed horizontally Can be installed sideways PARAMETER COMPARISON Aquarium Heater - 5 key Add to Cart Aquarium Heater - 5 key Add to Cart Aquarium Heater - 5 key Add to Cart Aquarium Heater - 5 key Add to Cart Aquarium Heater - Digital Add to Cart Aquarium Heater - Digital Add to Cart Aquarium Heater - Digital Add to Cart Customer Reviews 3.8 out of 5 stars 39 3.8 out of 5 stars 39 3.8 out of 5 stars 39 3.8 out of 5 stars 39 3.8 out of 5 stars 133 3.8 out of 5 stars 133 3.8 out of 5 stars 133 Price $15.99$15.99 $16.99$16.99 $17.99$17.99 $18.99$18.99 $18.99$18.99 $19.99$19.99 $20.99$20.99 Watts 15W 25W 50W 75W 25W 50W 75W Voltage AC110-120V/60Hz AC110-120V/60Hz AC110-120V/60Hz AC110-120V/60Hz AC110-120V/60Hz AC110-120V/60Hz AC110-120V/60Hz Cord Length 4.9ft+1.0ft 4.9ft+1.0ft 4.9ft+1.0ft 4.9ft+1.0ft 4.9ft+1.0ft 4.9ft+1.0ft 4.9ft+1.0ft Application 0.4~2.64 Gal 0.4~5.3 Gal 0.4~11.9 Gal 0.4~15.9 Gal 0.4~5.3 Gal 0.4~11.9 Gal 0.4~15.9 Gal Temp Accuracy ±2℉ ±2℉ ±2℉ ±2℉ ±2℉ ±2℉ ±2℉ Control Range 78℉、82℉、86℉、90℉、94℉ 78℉、82℉、86℉、90℉、94℉ 78℉、82℉、86℉、90℉、94℉ 78℉、82℉、86℉、90℉、94℉ 68℉ ~ 90℉ 68℉ ~ 90℉ 68℉ ~ 90℉ Controller Type 5 key buttons 5 key buttons 5 key buttons 5 key buttons Digital display buttons Digital display buttons Digital display buttons