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Amazon.com: Fluval E300 Advanced Electronic Heater, 300-Watt Heater for Aquariums up to 100 Gal., A774 : Pet Supplies
![Amazon.com: Fluval E300 Advanced Electronic Heater, 300-Watt Heater for Aquariums up to 100 Gal., A774 : Pet Supplies Amazon.com: Fluval E300 Advanced Electronic Heater, 300-Watt Heater for Aquariums up to 100 Gal., A774 : Pet Supplies](https://m.media-amazon.com/images/I/812aXQfTk4L._AC_UF350,350_QL80_.jpg)
Amazon.com: Fluval E300 Advanced Electronic Heater, 300-Watt Heater for Aquariums up to 100 Gal., A774 : Pet Supplies
![Amazon.com: Fluval E300 Advanced Electronic Heater, 300-Watt Heater for Aquariums up to 100 Gal., A774 : Pet Supplies Amazon.com: Fluval E300 Advanced Electronic Heater, 300-Watt Heater for Aquariums up to 100 Gal., A774 : Pet Supplies](https://m.media-amazon.com/images/I/81Nk+8xyZ0L.jpg)
Amazon.com: Fluval E300 Advanced Electronic Heater, 300-Watt Heater for Aquariums up to 100 Gal., A774 : Pet Supplies
![Amazon.com: Fluval E300 Advanced Electronic Heater, 300-Watt Heater for Aquariums up to 100 Gal., A774 : Pet Supplies Amazon.com: Fluval E300 Advanced Electronic Heater, 300-Watt Heater for Aquariums up to 100 Gal., A774 : Pet Supplies](https://m.media-amazon.com/images/I/51ZGOiBRCNL._AC_UF894,1000_QL80_.jpg)
Amazon.com: Fluval E300 Advanced Electronic Heater, 300-Watt Heater for Aquariums up to 100 Gal., A774 : Pet Supplies
![Amazon.com: Fluval E100 Advanced Electronic Heater, 100-Watt Heater for Aquariums up to 30 Gal., A772 : Pet Supplies Amazon.com: Fluval E100 Advanced Electronic Heater, 100-Watt Heater for Aquariums up to 30 Gal., A772 : Pet Supplies](https://m.media-amazon.com/images/I/71APWlTq3WL._AC_UF894,1000_QL80_.jpg)
Amazon.com: Fluval E100 Advanced Electronic Heater, 100-Watt Heater for Aquariums up to 30 Gal., A772 : Pet Supplies
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The Best Aquarium Lighting: How to Choose Aquarium Lighting for your Fish Tank - Pond Guides | Pond Planet
![Amazon.com: Fluval E300 Advanced Electronic Heater, 300-Watt Heater for Aquariums up to 100 Gal., A774 : Pet Supplies Amazon.com: Fluval E300 Advanced Electronic Heater, 300-Watt Heater for Aquariums up to 100 Gal., A774 : Pet Supplies](https://m.media-amazon.com/images/I/81dI4tEZgwL.jpg)
Amazon.com: Fluval E300 Advanced Electronic Heater, 300-Watt Heater for Aquariums up to 100 Gal., A774 : Pet Supplies
![Amazon.com: Fluval E300 Advanced Electronic Heater, 300-Watt Heater for Aquariums up to 100 Gal., A774 : Pet Supplies Amazon.com: Fluval E300 Advanced Electronic Heater, 300-Watt Heater for Aquariums up to 100 Gal., A774 : Pet Supplies](https://m.media-amazon.com/images/I/51ZGOiBRCNL.jpg)
Amazon.com: Fluval E300 Advanced Electronic Heater, 300-Watt Heater for Aquariums up to 100 Gal., A774 : Pet Supplies
![Brand new heater with a faulty seal? Just got this Fluval heater to replace my old Fluval, and immediately after putting it in the tank and without it being plugged in bubbles Brand new heater with a faulty seal? Just got this Fluval heater to replace my old Fluval, and immediately after putting it in the tank and without it being plugged in bubbles](https://i.redd.it/kd4hgbpa8l661.jpg)