FREESEA Aquarium Heater for Fish Tank: 25W Preset 78°F - 24/7 Stable Temperature Worry-Free Keeping - Auto-Off Out of Water - 1–5 gal Betta Turtle & Saltwater Tank - size: 25W(1-5 Gallon)

About this item

• 【Constant Temp & Auto Shut-off】Features high-quality magnesium oxide filling for even heat distribution and anti-leakage protection, 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 small fish tank, 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, 2 strong suction cups, 2 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.

Overview

• Package Dimensions ‏: ‎ 7.72 x 2.99 x 1.85 inches; 1.45 ounces
• Item model number ‏: ‎ FS01
• Date First Available ‏: ‎ December 25, 2025
• Manufacturer ‏: ‎ FREESEA
• ASIN ‏: ‎ B0GCHQNPCM
• Best Sellers Rank: #77,610 in Pet Supplies (See Top 100 in Pet Supplies) #153 in Aquarium Heaters
• Customer Reviews: 4.9 4.9 out of 5 stars (19)