Aysoner Aquarium Heater for Fish Tank: 25W Constant 78°F - Auto-Off When Out of Water - 1-5 Gallon Betta Turtle & Saltwater Tank

【Constant Temp & Auto Shut-off】Utilizes nickel-chrome heating wire and magnesium oxide filling for even heating and anti-leakage, maintaining a constant 78°F (±2°F). Top sensor auto shuts off when 2 inches out of water, eliminating overheating or dry burn risks, offering a stable aquatic environment for your pets.

【Ideal for Enthusiasts & Small Tanks】Designed for 1-5 gallon freshwater or saltwater aquariums, perfect for home, office, or fish stores. Suitable for betta, goldfish, turtle, and reef tanks, delivering reliable heat without occupying space or disrupting scenery.

【Shatterproof & Compact Design】Features explosion-proof quartz glass core and smooth PC cover, more compact and safer than ordinary glass heaters. Prevents cracking and burns, suitable for freshwater community tanks and corrosive saltwater environments.

【Dual Protection for Trust】Combines auto-constant 78℉ and water-out auto shut-off, plus protective cover, directly addressing “cooking fish” or “glass burst” fears. Proven safety for betta, turtles, and sensitive corals.

【Easy Setup & Worry-free Warranty】Includes UL certified 4.9ft power cord, two strong suction cups, two thermometer stickers for quick installation.1 year warranty, your satisfaction and the ecological stability of the fish tank are our primary goals, making your choices simple and risk-free.