Amazon.com : Hydor Theo Shatterproof Aquarium Heater, 25-Watt & Ideal For 2 To 7 Gallon Fish Tanks, 7-Inches Long : Pet Supplies
Amazon.com: Karen Low 25 Watts (Tank Size: 5 to 8 Gallon) Adjustable Aquarium Heater Anti-Explosion Submersible Fish Tank Water/Temperature Range 18~33'c (65°f and 93°f.) : Pet Supplies
Fluval 25-Watt Aquarium Heater for Nano Fish Tanks | Mini 25W Heater – Aquarium Co-Op
Aquarium Heater 25W/50W Betta Fish Tank Heater For 1-5 Gallon Small Fish Tanks | eBay
Amazon.com : Fluval P25 Submersible Aquarium Heater for Up to 6 Gallons, 25 Watts : Pet Supplies
Neo-Therm Pro Heater
How to Choose the Right Aquarium Heater | Fish Tank Heaters 101 – Aquarium Co-Op
Amazon.com: YukiHalu Small Submersible Aquarium Heater, Adjustable Mini Fish Tank Heater 25W 50W 100W 200W 300W with External Temperature Controller, LED Display, Used for 5/10/20/40/60 Gallons (25 Watts) : Pet Supplies
Aqueon Submersible Aquarium Heater, 300 Watts, Up to 100 Gallons - Walmart.com
Penn Plax Aquarium Heater Fully Submersible Within 1 Degree of Accuracy 25 Watt Heats up to 5 Gallon Tank for sale online | eBay
Amazon.com: hygger Small Aquarium Betta Heater, Submersible Fish Tahk Heater 10W/25W/50W/100W with LED Digital Display, Suitable for Marine Saltwater and Freshwater up to 5/10/16/26 Gallon : Pet Supplies
Amazon.com: FREESEA Aquarium Fish Tank Heater: 25 Watt Mini Submersible Heater Adjustable Thermostat for 1-5 Gallon Betta | Turtle : Pet Supplies
Best Heaters for a 5-Gallon Freshwater Aquarium Fish Tank: Reviews - PetHelpful
Amazon.com: FREESEA 25 Watt Aquarium Betta Fish Tank Heater with Aquarium Submersible Thermometer : Pet Supplies
Fluval 25-Watt Aquarium Heater for Nano Fish Tanks | Mini 25W Heater – Aquarium Co-Op
HITOP Mini Submersible Aquarium Heater - 25W 50W 100W 200W 300W Small Heater for Fish Tank 1-70 Gallon with Controller (25W) : Pet Supplies - Amazon.com
Best Heaters For 5 Gallon Betta Tanks - Betta Care Fish Guide
Cascade® Heat® 7" Aquarium Heater 25 Watt for 5 Gallon Tanks at FreshMarine.com
AQUACLEAR* 25 WATT SUBMERSIBLE AQUARIUM HEATER NEW 2-5 gallon aquariums | eBay
Amazon.com: FREESEA Aquarium Fish Tank Heater: 25 Watt Mini Submersible Heater Adjustable Thermostat for 1-5 Gallon Betta | Turtle : Pet Supplies
hygger Small Submersible Aquarium Heater 25W Mini Betta Fish Tank Heater with Thermostat for 2-5 Gallon Saltwater Freshwater : Pet Supplies - Amazon.com
Fluval 25-Watt Aquarium Heater for Nano Fish Tanks | Mini 25W Heater – Aquarium Co-Op
Aqueon Mini Heater, 10W | Petco
Amazon.com: PULACO 25W Small Aquarium Betta Heater with Free Thermometer Strip, Under 6 Gallon Fish Tanks (Preset Temperature 78℉) : Pet Supplies
