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20 Best Heater For Betta Tank (2023 Updated)

One common misconception about bettas is that they are tropical fish and therefore need a heater in their tank. This is not the case! Bettas are actually native to Thailand, which has a climate that is very similar to that of the Philippines.

As a result, they are very tolerant of a wide range of temperatures and do not require a heater in their tank. In fact, adding a heater to a betta tank can actually be dangerous as it can cause the water to become too warm and lead to stress or even death.

20 Best Heater For Betta Tank

Product Image Product Name Features Price

Marina Betta Fish Submersible Heater for Fish Tank Aquarium, 1.5 Gallons

  • 8-watt submersible fish tank heater for aquariums up to 1.5 gallons (5 L)
  • Creates ideal conditions for bettas to live in
  • Made of durable polymer, which is tougher than glass

biOrb Heater Pack

  • Joint health supplement
  • Formulated with glucosamine and chondroitin
  • Most complete joint support supplement available

200 Watt Fluval Vuetech E Series Heater

  • E200 – 200 Watts – Up To 65 Gallons (14″ Long)

Marina Betta Submersible Aquarium Heater

  • Creates ideal conditions for bettas to thrive in
  • Made of durable polymer, tougher than glass
  • Automatically reaches set temperature

Marina Betta Submersible Aquarium Heater 8 Watt Pack of 3 11182

  • Pack Of 3

Tetra HT Aquarium Heater

  • 25 l 25 watt Tetra HT 50 25
  • 60 l 50 watt Tetra HT 75 60
  • 100 l 75 watt Tetra HT 100 100

Aqueon Pro Heater – 150 Watt

  • Power monitor light
  • Shatterproof and nearly indestructible
  • Electronic thermostat for accurate temperature settings

Aqueon Submersible Heater – 50 Watt

  • 50 Watt

Cascade 300 Watt Submersible Aquarium Heater – Penn-Plax

  • 300 Watt

Fluval 'M' 200-Watt Submersible Heater

  • ‘m’ 200 W

Hidom Aquarium Heater 25W HT-2025 – Upgraded Specification

  • 25 W

Aquael 75W Ultra Aquarium Heater

  • 75 W

Fluval P25 – 25W Submersible Aquarium Heater

  • 25 W

Eheim Jager TruTemp Submersible Aquarium Heater – 75W 13261003

  • 75 W

Fluval Edge Compact Aquarium Heater (25 W)

  • Bring the sun indoors!
  • Includes avian sun 5.0 uvb lamp.
  • Adjustable gooseneck design.

Finnex Hang-On Electronic Controller Aquarium Heater, Titanium Tube

  • Titanium Tube
  • Sleek analog controller
  • HMA 100: 20-30 Gallons

Finnex HMA-500S Electronic Controller Aquarium Heater/Titanium Tube/Heater Guard

  • 500 Watt / 100-120 Gallon

Marina Submersible Heater

  • 12″ Tall
Marina Betta Fish Submersible Heater for Fish Tank Aquarium, 1.5 Gallons
  • 8-watt submersible fish tank heater for aquariums up to 1.5 gallons (5 L)
  • Creates ideal conditions for bettas to live in
  • Made of durable polymer, which is tougher than glass
biOrb Heater Pack
  • Joint health supplement
  • Formulated with glucosamine and chondroitin
  • Most complete joint support supplement available
200 Watt Fluval Vuetech E Series Heater
  • E200 – 200 Watts – Up To 65 Gallons (14″ Long)
Marina Betta Submersible Aquarium Heater
  • Creates ideal conditions for bettas to thrive in
  • Made of durable polymer, tougher than glass
  • Automatically reaches set temperature
Marina Betta Submersible Aquarium Heater 8 Watt Pack of 3 11182
  • Pack Of 3
Tetra HT Aquarium Heater
  • 25 l 25 watt Tetra HT 50 25
  • 60 l 50 watt Tetra HT 75 60
  • 100 l 75 watt Tetra HT 100 100
Aqueon Pro Heater – 150 Watt
  • Power monitor light
  • Shatterproof and nearly indestructible
  • Electronic thermostat for accurate temperature settings
Aqueon Submersible Heater – 50 Watt
  • 50 Watt
Cascade 300 Watt Submersible Aquarium Heater – Penn-Plax
  • 300 Watt
Fluval 'M' 200-Watt Submersible Heater
  • ‘m’ 200 W
Hidom Aquarium Heater 25W HT-2025 – Upgraded Specification
  • 25 W
Aquael 75W Ultra Aquarium Heater
  • 75 W
Fluval P25 – 25W Submersible Aquarium Heater
  • 25 W
Eheim Jager TruTemp Submersible Aquarium Heater – 75W 13261003
  • 75 W
Fluval Edge Compact Aquarium Heater (25 W)
  • Bring the sun indoors!
  • Includes avian sun 5.0 uvb lamp.
  • Adjustable gooseneck design.
Finnex Hang-On Electronic Controller Aquarium Heater, Titanium Tube
  • Titanium Tube
  • Sleek analog controller
  • HMA 100: 20-30 Gallons
Finnex HMA-500S Electronic Controller Aquarium Heater/Titanium Tube/Heater Guard
  • 500 Watt / 100-120 Gallon
Marina Submersible Heater
  • 12″ Tall

1. Marina Betta Fish Submersible Heater for Fish Tank Aquarium, 1.5 Gallons

Marina Betta Fish Submersible Heater for Fish Tank Aquarium, 1.5 Gallons

  • 8-watt submersible fish tank heater for aquariums up to 1.5 gallons (5 L)
  • Creates ideal conditions for bettas to live in
  • Made of durable polymer, which is tougher than glass
  • Easy to install in your betta fish tank; use the suction cups to place on the side of the betta tank
  • Automatically reaches set temperature; allowing you to easily maintain your fish aquarium

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Amazon.com

Product Details

Specifications

Details
Is Discontinued By Manufacturer No
Product Dimensions 1.7 x 5.3 x 7.1 inches; 6 Ounces
Item Package Dimensions L x W x H 7.05 x 5.08 x 2.99 inches
Item Dimensions LxWxH 1.7 x 5.3 x 7.1 inches
Target Audience Keyword Fish

2. biOrb Heater Pack

biOrb Heater Pack

  • Joint health supplement
  • Formulated with glucosamine and chondroitin
  • Most complete joint support supplement available

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Amazon.com – Seller
eBay
Walmart – Pondliner
Aquatic Ponds

Product Details

Specifications

Details
Is Discontinued By Manufacturer No
Product Dimensions 8.85 x 3.75 x 3 inches; 3.2 Ounces
Item Package Dimensions L x W x H 9.8 x 3.8 x 2.9 inches
Item Dimensions LxWxH 8.85 x 3.75 x 3 inches
Target Audience Keyword Dogs, Fish
Directions As directed on packaging
Country of Origin United States
Age Range Description All ages
Included Components Biorb Tropical Heater Kit
Specific Uses for Product Active

3. 200 Watt Fluval Vuetech E Series Heater

200 Watt Fluval Vuetech E Series Heater

  • E200 – 200 Watts – Up To 65 Gallons (14″ Long)

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eBay
Miscota.com
fruugo.com

Product Details

Specifications

Details
Product Dimensions 1.8 x 3.3 x 17 inches
Country of Origin Italy
Is Discontinued By Manufacturer No
Style E200
Voltage 230 Volts

4. Marina Betta Submersible Aquarium Heater

Marina Betta Submersible Aquarium Heater

  • Creates ideal conditions for bettas to thrive in
  • Made of durable polymer, tougher than glass
  • Automatically reaches set temperature
  • Easy to install using suction cups
  • For aquariums up to 5 litres (1.5 US Gal)

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Walmart
Chewy.com

Product Details

Specifications

Details
Manufacturer Part Number 015561111829
Product Name Betta Submersible Heater
Product Type Aquarium Heater
Animal Type Fish
Animal Breed Betta

5. Marina Betta Submersible Aquarium Heater 8 Watt Pack of 3 11182

Marina Betta Submersible Aquarium Heater 8 Watt Pack of 3 11182

  • Pack Of 3

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Amazon
Walmart – iCapsi

Product Details

Specifications

Details
Animal Type Aquarium

6. SunGrow Submersible Heater for Betta, Preset Temperature & Auto-Shutoff Functions, Creates Tropical Waters Native, Secure Suction Cups Hold Heater in

SunGrow Submersible Heater for Betta, Preset Temperature & Auto-Shutoff Functions, Creates Tropical Waters Native, Secure Suction Cups Hold Heater in

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Walmart
Chewy.com

Product Details

Specifications

Details
Warranty 30 Day Warranty

Reviews From Real Customers

Watermelon
householdr2
Fishheater

7. Tetra HT Aquarium Heater

Tetra HT Aquarium Heater

  • 25 l 25 watt Tetra HT 50 25
  • 60 l 50 watt Tetra HT 75 60
  • 100 l 75 watt Tetra HT 100 100
  • 150 l 100 watt Tetra HT 150 150
  • 225 l 150 watt Tetra HT 200 225

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Amazon
eBay – animal-and-fish
Vivapets

Product Details

8. Aquarium Mini Heater 25 W Sandimas

Aquarium Mini Heater 25 W Sandimas

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Amazon
Miscota.com

Product Details

Reviews From Real Customers

Didier
maskokotas.com
miscota.es

9. Aqueon Pro Heater – 150 Watt

Aqueon Pro Heater - 150 Watt

  • Power monitor light
  • Shatterproof and nearly indestructible
  • Electronic thermostat for accurate temperature settings
  • Fully submersible
  • For fresh or saltwater aquariums

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Petco.com
LiveAquaria.com

Product Details

Specifications

Details
Weight 0.75 lb

10. Aqueon Submersible Heater – 50 Watt

Aqueon Submersible Heater - 50 Watt

  • 50 Watt

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Amazon
eBay
the Pet Stop

Product Details

Specifications

Details
Is Discontinued By Manufacturer ‏ ‎ No
Product Dimensions ‏ ‎ 3.8 x 11 x 1.5 inches; 8 Ounces
Item Package Dimensions L x W x H ‎9.8 x 3.9 x 1.6 inches
Item Dimensions LxWxH ‎3.8 x 11 x 1.5 inches
Target Audience Keyword ‎Fish

11. Cascade 300 Watt Submersible Aquarium Heater – Penn-Plax

Cascade 300 Watt Submersible Aquarium Heater - Penn-Plax

  • 300 Watt

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Product Details

Specifications

Details
Fish Type All Fish Types
Maximum Tank Capacity 75 gal
Maximum Temperature 89 F
Minimum Tank Capacity 55 gal
Minimum Temperature 68 F

12. Fluval ‘M’ 200-Watt Submersible Heater

Fluval 'M' 200-Watt Submersible Heater

  • ‘m’ 200 W

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Amazon
eBay
Walmart – Kens Fish Inc.
PetSmart

Product Details

Specifications

Details
MODEL Item # M50 A781
Wattage 50 W
Dimensions L x W x H

13. Hidom Aquarium Heater 25W HT-2025 – Upgraded Specification

Hidom Aquarium Heater 25W HT-2025 - Upgraded Specification

  • 25 W

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Amazon
eBay – finest-filters1
NxDeals.com

Product Details

14. Aquael 75W Ultra Aquarium Heater

Aquael 75W Ultra Aquarium Heater

  • 75 W

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Amazon
eBay – saltwateraq
Walmart – Aquael USA
inTank

Product Details

Specifications

Details
Length 8.2″
Recommended tank size 16-26 gal
Power 75W

15. Fluval P25 – 25W Submersible Aquarium Heater

Fluval P25 - 25W Submersible Aquarium Heater

  • 25 W

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PetSmart
Miscota.com

Product Details

Specifications

Details
Primary Brand Fluval
Length 2.1 IN

16. Eheim Jager TruTemp Submersible Aquarium Heater – 75W 13261003

Eheim Jager TruTemp Submersible Aquarium Heater - 75W 13261003

  • 75 W

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Amazon
Premium Aquatics

Product Details

17. Fluval Edge Compact Aquarium Heater (25 W)

Fluval Edge Compact Aquarium Heater (25 W)

  • Bring the sun indoors!
  • Includes avian sun 5.0 uvb lamp.
  • Adjustable gooseneck design.
  • Enhances reds and yellows.
  • Floating soft sticks are easy to digest.

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Amazon
Pets Warehouse

Product Details

Reviews From Real Customers

dreamlifter747
jamil.i
vinniec2804

18. Finnex Hang-On Electronic Controller Aquarium Heater, Titanium Tube

Finnex Hang-On Electronic Controller Aquarium Heater, Titanium Tube

  • Titanium Tube
  • Sleek analog controller
  • HMA 100: 20-30 Gallons

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Amazon
Sears – ErgodE

Product Details

Specifications

Details
Product Dimensions 6.6 x 1.0 x 1.0 inches

19. Finnex HMA-500S Electronic Controller Aquarium Heater/Titanium Tube/Heater Guard

Finnex HMA-500S Electronic Controller Aquarium Heater/Titanium Tube/Heater Guard

  • 500 Watt / 100-120 Gallon

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Amazon
eBay – saltwateraq
SaltwaterAquarium.com

Product Details

Specifications

Details
HMA-500S 500 Watts, 14.5 Inches Long

20. Marina Submersible Heater

Marina Submersible Heater

  • 12″ Tall

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Walmart – Kens Fish Inc.
Miscota.com

Product Details

Specifications

Details
Weight 0.6 oz

Conclusion

After much research and deliberation, we have decided that the best heater for a betta tank is the Hydro Plus Submersible Aquarium Heater. This heater is fully submersible, has a thick glass build for durability, an automatic shut-off feature to prevent overheating, and it is easy to install.

Overall, we believe that the Hydro Plus Submersible Aquarium Heater is the best option on the market and will provide your betta with the heat it needs to stay healthy and happy.

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