![Amazon.com : Hydor Theo Shatterproof Aquarium Heater, 100-Watt & Ideal For 14 To 26 Gallon Fish Tanks, 8.9-Inches Long : Pet Supplies Amazon.com : Hydor Theo Shatterproof Aquarium Heater, 100-Watt & Ideal For 14 To 26 Gallon Fish Tanks, 8.9-Inches Long : Pet Supplies](https://m.media-amazon.com/images/I/41AMTfGtzQL._AC_UF1000,1000_QL80_.jpg)
Amazon.com : Hydor Theo Shatterproof Aquarium Heater, 100-Watt & Ideal For 14 To 26 Gallon Fish Tanks, 8.9-Inches Long : Pet Supplies
![Amazon.com : Hydor Theo Shatterproof Aquarium Heater, 150-Watt & Ideal For 23 To 40 Gallon Fish Tanks, 12-Inches Long : Pet Supplies Amazon.com : Hydor Theo Shatterproof Aquarium Heater, 150-Watt & Ideal For 23 To 40 Gallon Fish Tanks, 12-Inches Long : Pet Supplies](https://m.media-amazon.com/images/I/51rFHXDlIGL.jpg)
Amazon.com : Hydor Theo Shatterproof Aquarium Heater, 150-Watt & Ideal For 23 To 40 Gallon Fish Tanks, 12-Inches Long : Pet Supplies
![Amazon.com : Hydor Theo Shatterproof Aquarium Heater, 400-Watt & Ideal For 80 To 105 Gallon Fish Tanks, 15.5 Inches Long : Aquarium Water Heater : Pet Supplies Amazon.com : Hydor Theo Shatterproof Aquarium Heater, 400-Watt & Ideal For 80 To 105 Gallon Fish Tanks, 15.5 Inches Long : Aquarium Water Heater : Pet Supplies](https://m.media-amazon.com/images/I/81pwYfm1VNL._AC_UF1000,1000_QL80_.jpg)