Aquaneat Aquarium Heater, 100W Fish Tank Heater, Adjustable Submersible Water Thermostat with Digital Thermometer
Aquaneat Aquarium Heater, 100W Fish Tank Heater, Adjustable Submersible Water Thermostat with Digital Thermometer
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Aquaneat Aquarium Heater, 100W Fish Tank Heater, Adjustable Submersible Water Thermostat with Digital Thermometer

Key item features

  • ‌Ideal for 15-30 gallon Fish Tank: This 100W aquarium heater (8.25" length) with 6ft power cord (110-120V/60Hz) efficiently maintains ideal water temperature for both marine and freshwater aquariums
  • Easy Temperature Control ‌: An easy-to-access dial on the top makes it a breeze to adjust the water temp from 65°F to 89°F to suit your aquatic fish’s needs
  • Steady Temp: The red light automatically shuts off when the target temp is reached, and the heater maintains consistent warmth for your fish or turtle tank
  • Package Includes:  1x 100W Aquarium Heater, 2x Suction Cups, 1x Digital Thermometer for easy temperature monitoring
  • Cautions: Always fully submerge it before turning it on. Remember to unplug it and wait at least 10 minutes before performing aquarium maintenance or removing it from the water
Current price is $13.98
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4.517167381974249 stars out of 5, based on 466 seller reviews(4.5)
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4.8 out of 5 stars
stars57 ratings11 reviews
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Showing 1-3 of 11 reviews

Jan 12, 2026
Walmart customer
Top Reviewer
Item details
Size: 50W
Sold and shipped byAQUANEAT
5 out of 5 stars review

Verified Purchase

Good Heater

Good quality heater at a great price. Lay it flat in the back for hiding behind plants. I purchased three because one large heater was risky. It goes bad, it typical occurs while on .. Fish are floating on top. With three, one goes bad, it can't heat the whole tank without the other two. Also like anything, further away cooler it is. Three keeps the tank at a steady temperature. Using three in a 30 gal they are accurate enough to keep the temp within one degree. Fast shipping, packed to protect. Good Job!

Helpful?2JFKF3EPAJ8017100818855
May 5, 2026
Marsha
Top Reviewer
Item details
Size: 300W
Sold byAQUANEATDelivered byWalmart
5 out of 5 stars review

Verified Purchase

Love this heater!!

This heater is great! I am using it in a 55 gallon turtle tank with like 20” of water and this one keeps the temperature perfect! It had an easy turn dial to set the temperature, and the light lets you know when it's on…And reading the temp is super easy on the digital display! Its super easy hiding it even from the most active, silly, social, playful turtle I have EVER known!

Helpful?2JFKF3EPAJ8017100818855
Feb 18, 2026
Jackie
Top Reviewer
Item details
Size: 50W
Sold and shipped byAQUANEAT
5 out of 5 stars review

Verified Purchase

Perfect heater for smaller fish tank

Very nice heater has held consistent temp as set for over 2 weeks. Only thing I wish was the power cord was a bit longer. Easy to install and get going. My betta is very happy now. Would buy again.

Helpful?2JFKF3EPAJ8017100818855