Best Betta Heater

best betta heaterBetta fish have a reputation of being hardy, colorful fish that you can simply place in an unfiltered and unheated bowl on a desk or window ledge. To really care for the animal we need to provide for its needs and one of the things people need to supply their fish with is heat, through an aquarium heater, but what do you need to look for when selecting the best betta heater?

Best Betta Heater

Most tropical aquarium fish you see in stores need heated aquariums and be kept at a temperature of 75f-86f depending on species. Betta fish are one of those species that come from very hot water in South East Asia, often heavily planted and low in pH. This is a fairly easy and cheap environment to recreate, but if we are going to do that we need the best betta heater.

Betta heaters are no different to regular aquarium heaters, but because Bettas are often kept in small 1-3 gallon aquariums putting a regular 25w aquarium heater can look unsightly and take up a lot of room. Regular aquarium heaters are often overpowered for these small aquariums also which can be dangerous to the fish if the heater malfunctions and sticks on.

Pick the right size heater for your aquarium, you want about 2-3 watts of heat per gallon of water. If you aquarium is 2 gallons, look for a 5w-10w heater. If your aquarium is 10 gallons, you need a 20w-30w heater. Watts is how much energy your heater uses, the higher the watts the more power it has.

ImageProduct
Visit the Tetra HT Submersible Aquarium Heater With Electronic Thermostat on Amazon. Best Overall Tetra HT Submersible Aquarium Heater With Electronic Thermostat Check Price
Visit the SunGrow Submersible Aquarium Heater for Feathertail Betta, 10-Watt Heater for Small Tanks (1.5-Gallons), Reaches Preset Temperature Automatically, Suction Cups Included for Easy Installation on Amazon. Best Value SunGrow Submersible Aquarium Heater for Feathertail Betta, 10-Watt Heater for Small Tanks (1.5-Gallons), Reaches Preset Temperature Automatically, Suction Cups Included for Easy Installation Check Price
Visit the Aqueon Mini Heater for Aquariums, 5W, Under 2.5 Gallon on Amazon. Budget Option Aqueon Mini Heater for Aquariums, 5W, Under 2.5 Gallon Check Price
Visit the Marina C10 Compact Heater, 10-Watt on Amazon. Marina C10 Compact Heater, 10-Watt Check Price
Visit the FREESEA 50 Watt Small Aquarium Betta Submersible Heater with LED Temperature Display on Amazon. FREESEA 50 Watt Small Aquarium Betta Submersible Heater with LED Temperature Display Check Price
Visit the SZELAM 25W Smart Mini Aquarium Heater, Betta Fish Tank Heater Thermostat Warmer Submersible Anti-Explosion/Energy-efficient Water Temp Controller - 3 Artificial Plants Include on Amazon. SZELAM 25W Smart Mini Aquarium Heater, Betta Fish Tank Heater Thermostat Warmer Submersible Anti-Explosion/Energy-efficient Water Temp Controller - 3 Artificial Plants Include Check Price
Visit the Betta Fish Tank Heater, Mini Submersible 25W Aquarium Heaters Energy-efficient Water Temp Controller Smart Thermostat Warmer for 1-5 Gallon -2 Artificial Plants 1 Stick-on Thermometer Strip Include on Amazon. Betta Fish Tank Heater, Mini Submersible 25W Aquarium Heaters Energy-efficient Water Temp Controller Smart Thermostat Warmer for 1-5 Gallon -2 Artificial Plants 1 Stick-on Thermometer Strip Include Check Price
Visit the Hydor 7.5w Slim Heater for Bettas and Bowls, 2 to 5 gal on Amazon. Hydor 7.5w Slim Heater for Bettas and Bowls, 2 to 5 gal Check Price
Visit the ZEETOON 25W Aquarium Heater, Automatic Thermostat Betta Fish Tank Heaters, Tortoise Small Water Warmer for 2-5 Gallon Container with 1 Stick-on Thermometer Strip on Amazon. ZEETOON 25W Aquarium Heater, Automatic Thermostat Betta Fish Tank Heaters, Tortoise Small Water Warmer for 2-5 Gallon Container with 1 Stick-on Thermometer Strip Check Price
Visit the 25W Betta Fish Tank Heater, Smart Thermostat Submersible Small Mini Aquarium Heater, Anti-Explosion/Energy-efficient Water Temp Controller Easy to Use for 1-5 Gallon - Gift with 2 Artificial Plants on Amazon. 25W Betta Fish Tank Heater, Smart Thermostat Submersible Small Mini Aquarium Heater, Anti-Explosion/Energy-efficient Water Temp Controller Easy to Use for 1-5 Gallon - Gift with 2 Artificial Plants Check Price
Product
Best Overall Tetra HT Submersible Aquarium Heater With Electronic Thermostat Visit the Tetra HT Submersible Aquarium Heater With Electronic Thermostat on Amazon. Check Price
Best Value SunGrow Submersible Aquarium Heater for Feathertail Betta, 10-Watt Heater for Small Tanks (1.5-Gallons), Reaches Preset Temperature Automatically, Suction Cups Included for Easy Installation Visit the SunGrow Submersible Aquarium Heater for Feathertail Betta, 10-Watt Heater for Small Tanks (1.5-Gallons), Reaches Preset Temperature Automatically, Suction Cups Included for Easy Installation on Amazon. Check Price
Budget Option Aqueon Mini Heater for Aquariums, 5W, Under 2.5 Gallon Visit the Aqueon Mini Heater for Aquariums, 5W, Under 2.5 Gallon on Amazon. Check Price
Marina C10 Compact Heater, 10-Watt Visit the Marina C10 Compact Heater, 10-Watt on Amazon. Check Price
FREESEA 50 Watt Small Aquarium Betta Submersible Heater with LED Temperature Display Visit the FREESEA 50 Watt Small Aquarium Betta Submersible Heater with LED Temperature Display on Amazon. Check Price
SZELAM 25W Smart Mini Aquarium Heater, Betta Fish Tank Heater Thermostat Warmer Submersible Anti-Explosion/Energy-efficient Water Temp Controller - 3 Artificial Plants Include Visit the SZELAM 25W Smart Mini Aquarium Heater, Betta Fish Tank Heater Thermostat Warmer Submersible Anti-Explosion/Energy-efficient Water Temp Controller - 3 Artificial Plants Include on Amazon. Check Price
Betta Fish Tank Heater, Mini Submersible 25W Aquarium Heaters Energy-efficient Water Temp Controller Smart Thermostat Warmer for 1-5 Gallon -2 Artificial Plants 1 Stick-on Thermometer Strip Include Visit the Betta Fish Tank Heater, Mini Submersible 25W Aquarium Heaters Energy-efficient Water Temp Controller Smart Thermostat Warmer for 1-5 Gallon -2 Artificial Plants 1 Stick-on Thermometer Strip Include on Amazon. Check Price
Hydor 7.5w Slim Heater for Bettas and Bowls, 2 to 5 gal Visit the Hydor 7.5w Slim Heater for Bettas and Bowls, 2 to 5 gal on Amazon. Check Price
ZEETOON 25W Aquarium Heater, Automatic Thermostat Betta Fish Tank Heaters, Tortoise Small Water Warmer for 2-5 Gallon Container with 1 Stick-on Thermometer Strip Visit the ZEETOON 25W Aquarium Heater, Automatic Thermostat Betta Fish Tank Heaters, Tortoise Small Water Warmer for 2-5 Gallon Container with 1 Stick-on Thermometer Strip on Amazon. Check Price
25W Betta Fish Tank Heater, Smart Thermostat Submersible Small Mini Aquarium Heater, Anti-Explosion/Energy-efficient Water Temp Controller Easy to Use for 1-5 Gallon - Gift with 2 Artificial Plants Visit the 25W Betta Fish Tank Heater, Smart Thermostat Submersible Small Mini Aquarium Heater, Anti-Explosion/Energy-efficient Water Temp Controller Easy to Use for 1-5 Gallon - Gift with 2 Artificial Plants on Amazon. Check Price

Tetra HT Submersible Aquarium Heater With Electronic Thermostat

$19.99
$14.94  in stock
1 new from $14.94
3 used from $10.39
Free shipping
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Amazon.com
as of December 11, 2019 7:24 pm

Features

  • All Tetra HT heaters have indicator lights to let you know when the heater is on. It will be red when heating and green when the proper temperature has been reached.
  • The HT10 uses a built in electronic theromstat to automatically maintain water at 78° F which is ideal for most tropical fish. No adjustment is requried.
  • Ideal for aquariums between 2 to 10 gallons with hoods or glass canopies
  • The HT heater is fully submersbile and can be installed vertically or horizontally. It's small footprint makes it easy to conceal behind plants or other décor.
  • Please read all label information upon delivery. DO NOT plug heater into an electrical outlet until it is placed inside the aquarium.

SunGrow Submersible Aquarium Heater for Feathertail Betta, 10-Watt Heater for Small Tanks (1.5-Gallons), Reaches Preset Temperature Automatically, Suction Cups Included for Easy Installation

$12.20  in stock
1 new from $12.20
Free shipping
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as of December 11, 2019 7:24 pm

Features

  • ✔ FOR THE BETTERMENT OF YOUR HARDY FRESHWATER FISH --- It is absolutely essential that your aquaria should be heated between 73° and 82°F for optimal comfort and metabolic efficiency of your Betta Fish. The temperature below 69°F will cause your feathertail Betta to enter a state of minimal activity and they will be stressed and miserable.
  • ✔ CREATES THE IDEAL CONDITIONS FOR FLORA AND FAUNA --- This fish species is commonly found in Africa, and South America. They are used to warm temperature. This heater will create ideal conditions for them. A few preconditions are required to allow it to run with maximum efficiency. The heater must be completely submerged in the water and the indoor temperature should be around 62-74°F.
  • ✔ FULLY SUBMERSIBLE WATER HEATER--- This 10-watt aquarium heater supports 1.5 gallons (5 liters) fish tank. Its exterior is designed with tougher than glass and the sealed polymer can be submerged into your tank. The heating element is surrounded by a thick plastic to ensure the protection of your brightly colored freshwater fish like Angelfish, Discus, and Oscar.
  • ✔ AUTOMATICALLY REACHES THE PRESET TEMPERATURE --- The smart SunGrow heater for this freshwater fish has a built-in electronic thermostat to automatically maintain water around 72°F which is ideal for most tropical fish. It saves you from the trouble of constantly keeping a check on the temperature of your tank. It will automatically shut down when it will reach the desired temperature, no manual adjustment is needed.
  • ✔ SUCTION CUPS INCLUDED FOR EASY INSTALLATION ---- Easily install the SunGrow Heater vertically or horizontally by using the built-in suction cups to attach to your tank. The best location to place the heater is in the stream of a powerhead or near the water flow, such as the outlet (or inlet) from the filter. This way the heat is evenly distributed throughout your tank.

Aqueon Mini Heater for Aquariums, 5W, Under 2.5 Gallon

$11.13
$8.40  in stock
15 new from $8.40
Free shipping
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Amazon.com
as of December 11, 2019 7:24 pm

Features

  • Ideal for small glass or acrylic desktop aquariums up to 2.5 Gallons
  • Fully submersible
  • Quick and easy installation, vertical or horizontal placement using Suction cups
  • Shatterproof construction
  • Note: Do not operate or leave product plugged in when it is outside of water

Marina C10 Compact Heater, 10-Watt

$7.94  in stock
4 new from $7.94
4 used from $6.51
Free shipping
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Amazon.com
as of December 11, 2019 7:24 pm

Features

  • Fully submersible compact heater
  • Reliable performance; Maintains set temperature of 78 degrees Fahrenheit
  • Suitable for fresh or saltwater aquariums
  • Made of durable polymer
  • Ideal for aquariums up to 2.65 gallons; 2-year warranty

FREESEA 50 Watt Small Aquarium Betta Submersible Heater with LED Temperature Display

$18.99  in stock
1 new from $18.99
Free shipping
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Amazon.com
as of December 11, 2019 7:24 pm

Features

  • ★ Temperature range: 59°F~94°F, display Fahrenheit °F, this heater is designed for1~10 gallons tank.
  • ★ Automatic constant temperature function, when water temperature reaches to specified temperature value, heater will automatically stop heating, when water temperature is lower than the set temperature, heater will automatically start heating.
  • ★ Touch button, cyclic adjust temperature , easy to use and Safety.
  • ★【Note】:this heater is 100% submersible use only, during its heating time, heater must be 100% submerged into the water.
  • ★【SATISFACTION GUARANTEED】Gain the confidence to go hard with us! Our Aquarium Heater is built with durability in mind and safety for every design, In the remote possibility that you’re not satisfied with our product, just contact us, and we will gladly give you a new Aquarium Heater replacement. 12 Month Warranty and 24 Hour Professional After-sales Service.

SZELAM 25W Smart Mini Aquarium Heater, Betta Fish Tank Heater Thermostat Warmer Submersible Anti-Explosion/Energy-efficient Water Temp Controller - 3 Artificial Plants Include

$12.99  in stock
1 new from $12.99
Free shipping
Buy Now
Amazon.com
as of December 11, 2019 7:24 pm

Features

  • Smart Control- Adopted intelligent circuit board, with a precise temperature sensing probe and constant temperature heating system. No thermometer required, no more operations: Unlike other conventional heaters, need you to manually adjust the temperature. Our Smart Aquarium Heater just plug the power cable then it will work. It works in intermittent operation mode and will automatically turn on/off to achieve the setting temperature constantly and stably, Energy-efficient.
  • Easier to Use- SZELAM Mini Heater different from a manually adjusted heater. Our heater automatic temperature regulate on 73ºF-82ºF(25℃-28℃) , no need to set. Prevent electric shock and burns. Keep you and your family safe. Position it near a strong water flow for whole aquarium are in the same temperature. The outlet of filter is ideal.
  • High Quality- Made by heat resistant ABS housing, sandy quartz filler and MCH Alumina ceramic heating system, anti explosion & cracking, it is scald-preventing for your pets and safe operation for you, safer and more stable to use.
  • Mini Sized- Fully submersible compact betta fish heater Gift with 2PCS Aquarium Decor Artificial Plant. Specific perfect for mini aquarium under 5 gal/20L. SZELAM Mini Heater provide a constant warm for your pet fish to stay healthy, suitable both for fresh and salt water.
  • Quality Assurance- This product have certificated by CE, ROHS, FCC certifications. We provide 1 year quality assurance for this product, we will provide replacement items for any product problems within 1 year after your purchase it.

Betta Fish Tank Heater, Mini Submersible 25W Aquarium Heaters Energy-efficient Water Temp Controller Smart Thermostat Warmer for 1-5 Gallon -2 Artificial Plants 1 Stick-on Thermometer Strip Include

$39.99
$11.68  in stock
1 new from $11.68
Free shipping
Buy Now
Amazon.com
as of December 11, 2019 7:24 pm

Features

  • Betta Fish's Favorite Gifts: ZEETOON Fish Tank Heater Suitable for all kinds of aquarium pets, Betta, tropical fish, goldfish, ornamental fish and turtles, can work in both brine and fresh water. Your little fishes and turtles will no longer fear the winter! 2 Aquarium Decor Artificial Plants make their homes beautiful not boring. 1 Stick-on Thermometer Strip, Eliminate your worry of not confirming the heating temperature
  • Mini Sized- Fully submersible compact betta fish heater Gift with 2PCS Aquarium Decor Artificial Plant. Specific perfect for mini aquarium under 5 gal/20L.for all shapes and materials fish tanks, whether it is glass or plastic, all can be used. ZEETOON Mini Heater provide a constant warm for your pet fish to stay healthy, suitable both for fresh and salt water. intelligent temperature regulate, very easy to use.
  • Smart Control: Adopted intelligent circuit board, with a precise sensing probe and thermostat heating system. Unlike other conventional heaters, need you to manually adjust the temperature. Our Smart Aquarium Heater just plug the power cable then it will work. It works will automatically turn on/off to achieve the setting temperature constantly and stably 73ºF-82ºF(25℃-28℃), Energy-saving life, you will be at your fingertips!
  • Smart Thermostat: ZEETOON Mini Heater different from a manually adjusted heater. Our heater automatic temperature regulate on 73ºF-82ºF(25℃-28℃) , no need to set. Prevent electric shock and burns. Keep you and your family safe. Position it near a strong water flow for whole aquarium are in the same temperature. The outlet of filter is ideal. When there is a heater in the fish thak, do not put your hand in to the water
  • High Quality: Made by heat resistant ABS housing, sandy quartz filler and MCH Alumina ceramic heating system, anti explosion & cracking, it is scald-preventing for your pets and safe operation for you, safer and more stable to use. This product have certificated by CE, ROHS, FCC certifications. We provide 1 year quality assurance for this product, we will provide replacement items for any product problems within 1 year after your purchase it.

Hydor 7.5w Slim Heater for Bettas and Bowls, 2 to 5 gal

$11.99  in stock
6 new from $10.99
Free shipping
Buy Now
Amazon.com
as of December 11, 2019 7:24 pm

Features

  • Helps guarantee your fish a healthy life by promoting the ideal water temperature
  • Plug and play
  • No temperature to set
  • Can be positioned under gravel
  • 90-Degree Angle for perfect betta bowl fit

ZEETOON 25W Aquarium Heater, Automatic Thermostat Betta Fish Tank Heaters, Tortoise Small Water Warmer for 2-5 Gallon Container with 1 Stick-on Thermometer Strip

$49.99
$12.89  in stock
1 new from $12.89
Free shipping
Buy Now
Amazon.com
as of December 11, 2019 7:24 pm

Features

  • 73ºF-82ºF Auto Thermostatic: ZEETOON Fish Tank Heater Betta Fish's Favorite Gifts, Suitable for all kinds of aquarium pets, Betta, tropical fish, goldfish, ornamental fish and turtles, can work in both brine and fresh water. Maintaining pleasant water temperatures in all seasons for your little fishes and turtles and will be no longer fear the winter! 1 Stick-on Thermometer Strip, Eliminate your worry of not confirming the heating temperature
  • Mini Sized More Fit: Specific perfect for mini aquarium under 5 gal/20L. Fully submersible compact betta fish heater for all shapes and materials fish tanks 1-2-3-4-5 gallon, whether it is glass or plastic, all can be used. ZEETOON Mini Heater provide a constant warm for your pet fish to stay healthy, suitable both for fresh and salt water. intelligent temperature regulate, very easy to use.
  • Automatic For Energy-saving: Adopted intelligent circuit board, with a precise sensing probe and thermostat heating system. Unlike other conventional heaters, need you to manually adjust the temperature. Our Smart Aquarium Heater just plug the power cable then it will work. It works will automatically turn on/off to achieve the setting temperature constantly and stably 73ºF-82ºF(25℃-28℃), Energy-saving life, you will be at your fingertips!
  • Smart For Your Safety : ZEETOON Mini Heater different from a manually adjusted heater. Our heater automatic temperature regulate on 73ºF-82ºF(25℃-28℃) , no need to set. Prevent electric shock and burns. Keep you and your family safe. Position it near a strong water flow for whole aquarium are in the same temperature. The outlet of filter is ideal. When there is a heater in the fish thak, do not put your hand in to the water
  • High Quality: Made by heat resistant ABS housing, sandy quartz filler and MCH Alumina ceramic heating system, anti explosion & cracking, it is scald-preventing for your pets and safe operation for you, safer and more stable to use. We provide 1 year quality assurance for this product, we will provide replacement items for any product problems within 1 year after your purchase it.

25W Betta Fish Tank Heater, Smart Thermostat Submersible Small Mini Aquarium Heater, Anti-Explosion/Energy-efficient Water Temp Controller Easy to Use for 1-5 Gallon - Gift with 2 Artificial Plants

$12.98
$11.99  in stock
2 new from $11.99
Free shipping
Buy Now
Amazon.com
as of December 11, 2019 7:24 pm

Features

  • ★ Smart Control- Adopted intelligent circuit board, with a precise temperature sensing probe and constant temperature heating system. No thermometer required, no more operations: Unlike other conventional heaters, need you to manually adjust the temperature. Our Smart Aquarium Heater just plug the power cable then it will work. It works in intermittent operation mode and will automatically turn on/off to achieve the setting temperature constantly and stably, Energy-efficient.
  • ★ Easier to Use- Upick Mini Heater different from a manually adjusted heater. Our heater automatic temperature regulate on 25℃ (77ºF), no need to set. Prevent electric shock and burns. Keep you and your family safe. Position it near a strong water flow for whole aquarium are in the same temperature. The outlet of filter is ideal.
  • ★ High Quality- Made by heat resistant ABS housing, sandy quartz filler and MCH Alumina ceramic heating system, anti explosion & cracking, it is scald-preventing for your pets and safe operation for you, safer and more stable to use.
  • ★ Mini Sized- Fully submersible compact heater Gift with 2PCS Aquarium Decor Artificial Plant. Specific perfect for mini aquarium under 5 gal/20L. Upick Mini Heater provide a constant warm for your pet fish to stay healthy, suitable both for fresh and salt water.
  • ★ Quality Assurance- This product have certificated by CE, ROHS, FCC certifications. We provide 1 year quality assurance for this product, we will provide replacement items for any product problems within 1 year after your purchase it.

Conclusion

Betta fish are easy to care for and very affordable pets, supplying them with what they need is simple and affordable. Do the right thing and get your betta fish a heater.

There is no best betta fish heater, find one that is the correct size for your aquarium and fits your form factor. The smaller heaters are very easy to use and require no adjustment, they are also easy to hide behind plants and aquascape materials. The larger heaters tend to be adjustable but you don’t really need this for Betta fish, they will adapt to most temperatures over 75f fairly easily.

My betta is sick, what can I do?

It depends what is wrong with it, if it has a disease treat it with the right medication but an old school trick for sick fish is aquarium salt. If you add 3 grams per gallon to the water for short term (2 weeks max) it can help kill any parasites or fungus your fish is likely to have. Other good cures that fish keepers should have on hand is API General Cure. This is an all-in-one remedy for most parasite issues and often works better than salt.

The key to fixing sick fish is to work out what is wrong with them first.

How long do betta fish live?

A healthy and happy betta fish should live 2-3 years, with some living as long as 5 years.

How often should I feed my betta fish?

Lots of small feedings is best for fish, in a perfect work 3-4 small (single flake) feedings is best but if you can only feed once per day that’s fine too. Pay attention to the fish, if the stomach is looking full maybe it’s best to skip a meal, if it’s thin feed more.

How long can a betta go without food?

A healthy fish can go a couple of weeks without food but it’s not advised. If you’re going on holiday or vacation show a neighbour how to feed your fish and ask them to help out!

Where do betta fish come from?

South East Asia, Betta fish in the wild are very common in rice paddies and ponds but aquarium hobbyists in Asia have bred them into the colourful fish we see today with massive fins. Asian rice farmers would often breed these fish for fighting purposes, hence their common name of the siamese fighting fish.

What temperature should I keep my betta fish at?

75f to 80f is fine.

Author Image - Max Tucker
Max Tucker

Max is a 31 year old blogger from Worcester, UK. He has a masters in Computer Science and is currently running a marketing agency based in London. In his spare time he likes to review technology and out doors equipment. Read more about him.

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