Hero image 0 of Tetra Submersible Aquarium Heater, 50-Watts, 0 of 5
Tetra Submersible Aquarium Heater, 50-Watts
Key item features
This Tetra submersible 50-watt heater is very easy to use for aquariums ranging from 2 to 30-gallons. The electronic thermostat automatically adjusts heat output to keep the water at a constant 78 degrees Fahrenheit. All you have to do is put it in the aquarium and plug it in.
Features
- No adjustment required
- Easy to conceal
- Two year warranty
- Please read all label information on delivery
Specs
- Watts50
- FeaturesSubmersible
- Height6.5 in
- AccessoriesSuction cup
Reviews summary
Pros
- : Offers good value at this cost.
- : Designed for smaller aquariums with limited space.
- : Ideal for compact spaces, maintaining steady temperature.
Neutral
- : Can maintain optimal temperatures, but may fluctuate.
Cons
- : Fails to maintain or reach set temperature consistently.
- : Indicator light operation is inconsistent, sometimes not turning on or staying on briefly.
Generated by AI
Current price is USD$15.27
Price when purchased online
Free 90-day returns
How do you want your item?
Try 30 days of Free Shipping with Walmart+! Choose plan at checkout.
Columbus, 43215
Arrives by Tomorrow
.Order within 13 hr 30 min
Sold and shipped by Walmart.com
Free 90-day returns
This item is gift eligible
Similar items you might like
Based on what customers bought
200W Submersible Adjustable Aquarium Heater,Fish Tank Heater for 20-100 Gallon Fish Tank,1 PC $15.99
6 optionsAvailable in additional 6 options$1599current price $15.99200W Submersible Adjustable Aquarium Heater,Fish Tank Heater for 20-100 Gallon Fish Tank,1 PC
124 out of 5 Stars. 12 reviewsShipping, arrives in 3+ daysBest seller Vibrant Life 50 W Aquarium Heater $15.57
Best seller
$1557current price $15.57Vibrant Life 50 W Aquarium Heater
984.6 out of 5 Stars. 98 reviewsSave with
Shipping, arrives todayTetra HT Submersible Heater 150 Watts, For Aquariums 30 To 40 Gallons, UL Listed $23.97
$2397current price $23.97Tetra HT Submersible Heater 150 Watts, For Aquariums 30 To 40 Gallons, UL Listed
183.8 out of 5 Stars. 18 reviewsSave withShipping, arrives tomorrowMarina Betta Submersible Heater, Black $15.99
$1599current price $15.99Marina Betta Submersible Heater, Black
474.2 out of 5 Stars. 47 reviewsShipping, arrives in 3+ daysInterpet Heater Glass Life Thermal 50W for 3-10 Gallon Aquariums $20.00
$2000current price $20.00Interpet Heater Glass Life Thermal 50W for 3-10 Gallon Aquariums
1733.7 out of 5 Stars. 173 reviewsSave withShipping, arrives tomorrowDaToo Mini Aquarium Heater 25W Small Fish Tank Heater 25 Watt with Free Thermometer Sticker $8.99
$899current price $8.99DaToo Mini Aquarium Heater 25W Small Fish Tank Heater 25 Watt with Free Thermometer Sticker
1254.2 out of 5 Stars. 125 reviewsSave withShipping, arrives tomorrowBest seller Vibrant Life Betta Aquarium Heater for Fish Tanks up to 3 Gallon, 15 W $13.97
Best seller
$1397current price $13.97Vibrant Life Betta Aquarium Heater for Fish Tanks up to 3 Gallon, 15 W
994.4 out of 5 Stars. 99 reviewsSave withPickup todayDelivery todayShipping, arrives todayClearance SDJMa 25/50/100/200/300W Adjustable Aquarium Heater, Submersible Fish Tank Heater Thermostat with Suction Cups $14.09
Clearance
$1409current price $14.09More options from $12.99SDJMa 25/50/100/200/300W Adjustable Aquarium Heater, Submersible Fish Tank Heater Thermostat with Suction Cups
173.9 out of 5 Stars. 17 reviewsShipping, arrives in 3+ daysBest seller Vibrant Life 100 W Aquarium Heater $20.13
Best seller
$2013current price $20.13Vibrant Life 100 W Aquarium Heater
704.4 out of 5 Stars. 70 reviewsSave withPickup todayDelivery todayShipping, arrives todayAqueon Preset Aquarium Heater Black, 150 Watts $20.99
$2099current price $20.99Aqueon Preset Aquarium Heater Black, 150 Watts
54.8 out of 5 Stars. 5 reviewsSave withShipping, arrives tomorrowPenn-Plax Cascade Glass Heater – 8.5” Length – 100 Watt - for Aquarium and Fish Tanks $18.92 Was $24.49
Now$1892current price Now $18.92, Was $24.49$24.49Penn-Plax Cascade Glass Heater – 8.5” Length – 100 Watt - for Aquarium and Fish Tanks
294.4 out of 5 Stars. 29 reviewsSave withShipping, arrives tomorrowViaaqua 200-Watt Quartz Glass Submersible Heater With Built-In Thermostat $18.99
$1899current price $18.99Viaaqua 200-Watt Quartz Glass Submersible Heater With Built-In Thermostat
25 out of 5 Stars. 2 reviewsSave withShipping, arrives tomorrow50+ bought since yesterday Vibrant Life 25 Watts Aquarium Heater $12.97
50+ bought since yesterday
$1297current price $12.97Vibrant Life 25 Watts Aquarium Heater
1084.7 out of 5 Stars. 108 reviewsSave withPickup todayDelivery todayShipping, arrives todayAquaneat Aquarium Heater, 50W Fish Tank Heater, Adjustable Submersible Water Thermostat with Thermometer $10.99
5 optionsAvailable in additional 5 options$1099current price $10.99Options from $10.99 – $14.99Aquaneat Aquarium Heater, 50W Fish Tank Heater, Adjustable Submersible Water Thermostat with Thermometer
104.4 out of 5 Stars. 10 reviewsShipping, arrives in 3+ daysInterpet Heater Glass Life Thermal 200W $19.00
$1900current price $19.00Interpet Heater Glass Life Thermal 200W
1103.7 out of 5 Stars. 110 reviewsSave withShipping, arrives tomorrowVNEKVA 100W Mini Submersible Aquarium Heater with External Controller and Overheat Protection for 5–15 Gallon Fish and Turtle Tanks $16.99
$1699current price $16.99VNEKVA 100W Mini Submersible Aquarium Heater with External Controller and Overheat Protection for 5–15 Gallon Fish and Turtle Tanks
44 out of 5 Stars. 4 reviewsSave withShipping, arrives in 2 daysSuper Mini Aquarium Heater, 50W Small Fish Tank Heater Turtle Tank Mini Thermostatic Rod Heater for 5-10 Gal Tank Intelligent Constant , Dry-Run/Overheating Protection & 26 Degrees Heating Rod $6.27
$627current price $6.27+$4.49 shippingSuper Mini Aquarium Heater, 50W Small Fish Tank Heater Turtle Tank Mini Thermostatic Rod Heater for 5-10 Gal Tank Intelligent Constant , Dry-Run/Overheating Protection & 26 Degrees Heating Rod
Shipping, arrives in 3+ daysAquatop Aquatic Supplies-Nano Aquarium Heater 15 Watt $12.99
$1299current price $12.99Aquatop Aquatic Supplies-Nano Aquarium Heater 15 Watt
Save withShipping, arrives tomorrowCNZ Aquarium Quartz Glass Submersible Heaters, 200-watt $14.99
$1499current price $14.99CNZ Aquarium Quartz Glass Submersible Heaters, 200-watt
34.7 out of 5 Stars. 3 reviewsSave withShipping, arrives tomorrow
About this item
Product details
Tetra's HT line of heaters are easy-to-use and work in aquariums ranging from 2 to 55 gallons. The HT10 and HT30 have electronic thermostats that automatically adjust heat output to keep water at a constant 78 degrees F. The HT55 is adjustable between 72 degrees F and 85 degrees F. All HT heaters have indicator lights to let you know when the heater is on heating the aquarium.
This Tetra submersible 50-watt heater is very easy to use for aquariums ranging from 2 to 30-gallons. The electronic thermostat automatically adjusts heat output to keep the water at a constant 78 degrees Fahrenheit. All you have to do is put it in the aquarium and plug it in.
Features
- No adjustment required
- Easy to conceal
- Two year warranty
- Please read all label information on delivery
info:
We aim to show you accurate product information. Manufacturers, suppliers and others provide what you see here, and we have not verified it.
Specifications
Watts
50
Features
Submersible
Height
6.5 in
Accessories
Suction cup
Directions
Instructions
Attach to the inside of the aquarium wall using the suction cup (included) in an area with good water circulation.
Fabric Care Instructions
n/a
Warranty
Warranty information
All products come with a 90 Day, or longer, manufacturer warranty
More items to consider
Based on what customers bought
Aqua Culture 5-15 Gallon Single Outlet Aquarium Air Pump $10.12 Was $21.00
2 optionsAvailable in additional 2 optionsNow$1012current price Now $10.12, Was $21.00$21.00Options from $10.12 – $80.96Aqua Culture 5-15 Gallon Single Outlet Aquarium Air Pump
3614.3 out of 5 Stars. 361 reviewsSave withPickup todayDelivery todayShipping, arrives todayTetra Whisper Air Pump 10 to 30 Gallons, for Aquariums, Quiet, Powerful Airflow $21.57
5 optionsAvailable in additional 5 options$2157current price $21.57More options from $17.37Tetra Whisper Air Pump 10 to 30 Gallons, for Aquariums, Quiet, Powerful Airflow
1444.1 out of 5 Stars. 144 reviewsSave withShipping, arrives tomorrowAQUANEAT 6 PCS Aquarium Thermometer Strips, Reptile Thermometer, Fish Tank Thermometer Sticker, Terrarium Water Temperature Test $7.99
3 optionsAvailable in additional 3 optionsSponsored$799current price $7.99AQUANEAT 6 PCS Aquarium Thermometer Strips, Reptile Thermometer, Fish Tank Thermometer Sticker, Terrarium Water Temperature Test
93.3 out of 5 Stars. 9 reviewsInterpet Heater Flat Life Thermal 15 Watt for up to 4 Gallon Aquarium $13.99
$1399current price $13.99Interpet Heater Flat Life Thermal 15 Watt for up to 4 Gallon Aquarium
2203.5 out of 5 Stars. 220 reviewsSave withShipping, arrives tomorrowBest seller Tetra Whisper Internal Power Filter for Aquariums 1 to 4 Gallons $12.87
Best seller
3 optionsAvailable in additional 3 options$1287current price $12.87Options from $12.87 – $37.62Tetra Whisper Internal Power Filter for Aquariums 1 to 4 Gallons
10054.1 out of 5 Stars. 1005 reviewsSave withShipping, arrives tomorrowBest seller Stoney River White Aquatic Sand 5-Pound Bag $7.98
Best seller
5 optionsAvailable in additional 5 options$798current price $7.98Options from $7.98 – $31.92Stoney River White Aquatic Sand 5-Pound Bag
2174.4 out of 5 Stars. 217 reviewsSave withPickup todayDelivery todayShipping, arrives todayBest seller Tetra SafeStart, Cycles Water in Newly Set up Aquariums, 3.38 oz. $8.42
Best seller
4 optionsAvailable in additional 4 options$842current price $8.42Options from $8.42 – $33.68Tetra SafeStart, Cycles Water in Newly Set up Aquariums, 3.38 oz.
984.4 out of 5 Stars. 98 reviewsSave withPickup todayDelivery todayShipping, arrives todayMarina Floating Thermometer with Suction Cup $7.29
2 optionsAvailable in additional 2 options$729current price $7.29Marina Floating Thermometer with Suction Cup
304.4 out of 5 Stars. 30 reviewsShipping, arrives in 3+ daysBest seller Tetra Algae Control Aquarium Water Treatment, Controls Algae in Aquariums, 1.69 oz. $4.48
Best seller
4 optionsAvailable in additional 4 options$448current price $4.48Options from $4.48 – $17.92Tetra Algae Control Aquarium Water Treatment, Controls Algae in Aquariums, 1.69 oz.
3164 out of 5 Stars. 316 reviewsSave withPickup todayDelivery todayShipping, arrives todayPenn Plax Plastic 16-inch Aquarium Plants, 3-Count Pack, Green, Small 16" $15.89
2 optionsAvailable in additional 2 options$1589current price $15.89Penn Plax Plastic 16-inch Aquarium Plants, 3-Count Pack, Green, Small 16"
224.8 out of 5 Stars. 22 reviewsSave withShipping, arrives tomorrowBest seller Tetra 0.25 oz Tetra Bloodworms Freeze-Dried Fish Food $5.07
Best seller
4 optionsAvailable in additional 4 options$507current price $5.07Options from $5.07 – $19.28Tetra 0.25 oz Tetra Bloodworms Freeze-Dried Fish Food
2124.5 out of 5 Stars. 212 reviewsSave withPickup todayDelivery todayShipping, arrives todayAqueon Siphon Vacuum Gravel Cleaner Medium - 9 Inches $15.71
3 optionsAvailable in additional 3 options$1571current price $15.71Aqueon Siphon Vacuum Gravel Cleaner Medium - 9 Inches
343.6 out of 5 Stars. 34 reviewsSave withShipping, arrives tomorrowTetra Whisper Bio-Bag Unassembled Disposable Filter Cartridge for Aquariums, Medium, 12 Count $18.88
2 optionsAvailable in additional 2 options$1888current price $18.88Tetra Whisper Bio-Bag Unassembled Disposable Filter Cartridge for Aquariums, Medium, 12 Count
784.7 out of 5 Stars. 78 reviewsSave withShipping, arrives tomorrow(2 pack) Aqua Culture Aquarium Gravel, Black, 5 lb $13.56
4 optionsAvailable in additional 4 options$1356current price $13.56Options from $13.56 – $20.34(2 pack) Aqua Culture Aquarium Gravel, Black, 5 lb
2024.3 out of 5 Stars. 202 reviewsSave withShipping, arrives tomorrowTetra Whisper Air Pump for Aquariums up to 10 Gallons, Powerful Airflow, Non-UL Listed, 5.5 in. $17.47
2 optionsAvailable in additional 2 options$1747current price $17.47Tetra Whisper Air Pump for Aquariums up to 10 Gallons, Powerful Airflow, Non-UL Listed, 5.5 in.
2394.6 out of 5 Stars. 239 reviewsSave withShipping, arrives tomorrow(2 pack) Aqua Culture Aquarium Gravel Mix, Neon Starry Night, 5-Pound $13.56
2 optionsAvailable in additional 2 options$1356current price $13.56(2 pack) Aqua Culture Aquarium Gravel Mix, Neon Starry Night, 5-Pound
4104.7 out of 5 Stars. 410 reviewsSave withShipping, arrives in 2 daysTetra Whisper Bio-Bag Unassembled,Disposable Filter Cartridges for Aquariums, Large, 12 Count $14.57
3 optionsAvailable in additional 3 options$1457current price $14.57More options from $12.98Tetra Whisper Bio-Bag Unassembled,Disposable Filter Cartridges for Aquariums, Large, 12 Count
2714.7 out of 5 Stars. 271 reviewsSave withShipping, arrives in 2 daysBest seller Tetra Waterclarifier Aquarium Water Treatment, Clears Cloudy Aquarium Water, 3.38 oz. $5.32
Best seller
4 optionsAvailable in additional 4 options$532current price $5.32Options from $5.32 – $21.28Tetra Waterclarifier Aquarium Water Treatment, Clears Cloudy Aquarium Water, 3.38 oz.
4634.6 out of 5 Stars. 463 reviewsSave withPickup todayDelivery todayShipping, arrives today
Popular items in this category
Best selling items that customers love
Best seller Tetra BettaSafe Aquarium Water Conditioner for Bettas, 1.69 oz $5.52 Was $6.52
Best seller
4 optionsAvailable in additional 4 optionsNow$552current price Now $5.52, Was $6.52$6.52Options from $5.52 – $15.08Tetra BettaSafe Aquarium Water Conditioner for Bettas, 1.69 oz
2134.6 out of 5 Stars. 213 reviewsSave withPickup todayDelivery todayShipping, arrives todayTetra 19514 ReptoGuard Water Conditioner Block $5.99 $54.46/lb
$599current price $5.99$54.46/lbTetra 19514 ReptoGuard Water Conditioner Block
514.4 out of 5 Stars. 51 reviewsSave withShipping, arrives tomorrowTetra EasyStrips 6-in-1 Aquarium Test Strips, Water Testing $13.83
$1383current price $13.83Tetra EasyStrips 6-in-1 Aquarium Test Strips, Water Testing
334.8 out of 5 Stars. 33 reviewsSave withShipping, arrives tomorrowAqueon Mini Aquarium Heater, 10 Watts, Up to 5 Gallons $17.95
$1795current price $17.95Aqueon Mini Aquarium Heater, 10 Watts, Up to 5 Gallons
94.7 out of 5 Stars. 9 reviewsSave withShipping, arrives tomorrowAqueon Submersible Aquarium Heater, 100 Watts, Up to 40 Gallons $39.95 Was $49.99
3 optionsAvailable in additional 3 optionsNow$3995current price Now $39.95, Was $49.99$49.99Options from $39.95 – $54.95Aqueon Submersible Aquarium Heater, 100 Watts, Up to 40 Gallons
454.3 out of 5 Stars. 45 reviewsSave withShipping, arrives tomorrowAqueon Submersible Aquarium Heater, 50 Watts, Up to 20 Gallons $37.95 $1.30/ft
$3795current price $37.95$1.30/ftAqueon Submersible Aquarium Heater, 50 Watts, Up to 20 Gallons
24.5 out of 5 Stars. 2 reviewsSave withShipping, arrives tomorrowTetra Pond Start Water Conditioner Safe for Ornamental Pond Fish and Plants, 8 oz $8.52
4 optionsAvailable in additional 4 options$852current price $8.52Options from $8.52 – $34.08Tetra Pond Start Water Conditioner Safe for Ornamental Pond Fish and Plants, 8 oz
64.3 out of 5 Stars. 6 reviewsSave withShipping, arrives todayTetra AquaSafe Plus Aquarium Water Conditioner and De-Chlorinator,16.9 oz $17.27 $1.24/ea
$1727current price $17.27$1.24/eaTetra AquaSafe Plus Aquarium Water Conditioner and De-Chlorinator,16.9 oz
1724.6 out of 5 Stars. 172 reviewsSave withShipping, arrives tomorrowTetra Whisper Advanced Power Filter 30-60 Gallons, for Freshwater & Saltwater Aquariums $49.00 $49.00/count
$4900current price $49.00$49.00/countTetra Whisper Advanced Power Filter 30-60 Gallons, for Freshwater & Saltwater Aquariums
2863.8 out of 5 Stars. 286 reviewsSave withShipping, arrives tomorrowTET EASYSTRIPS AMMONIA TEST 10/100 CT $15.97 16.0 ¢/count
$1597current price $15.9716.0 ¢/countTET EASYSTRIPS AMMONIA TEST 10/100 CT
34 out of 5 Stars. 3 reviewsSave withShipping, arrives tomorrowGloFish 6-Inch LED Light Stick for Fish Aquariums Up to 5 Gallons, White and Blue LED Lights $25.97
$2597current price $25.97GloFish 6-Inch LED Light Stick for Fish Aquariums Up to 5 Gallons, White and Blue LED Lights
193.5 out of 5 Stars. 19 reviewsSave withPickup todayDelivery todayShipping, arrives todayTetra Whisper Air Pump for Aquariums 10 to 20 Gallons, Powerful Airflow, Non-UL Listed $21.67
$2167current price $21.67Tetra Whisper Air Pump for Aquariums 10 to 20 Gallons, Powerful Airflow, Non-UL Listed
132.9 out of 5 Stars. 13 reviewsSave withShipping, arrives tomorrowAqueon Adjustable PRO Aquarium Heater Up to 20 Gallons, 50 Watts $45.95
$4595current price $45.95Aqueon Adjustable PRO Aquarium Heater Up to 20 Gallons, 50 Watts
Shipping, arrives in 3+ daysAqueon Adjustable PRO Aquarium Heater Up to 75 Gallons, 200 Watts $57.99
$5799current price $57.99Aqueon Adjustable PRO Aquarium Heater Up to 75 Gallons, 200 Watts
24 out of 5 Stars. 2 reviewsShipping, arrives in 3+ daysAqueon Adjustable PRO Aquarium Heater Up to 100 Gallons, 300 Watts $69.95
$6995current price $69.95Aqueon Adjustable PRO Aquarium Heater Up to 100 Gallons, 300 Watts
194.7 out of 5 Stars. 19 reviewsSave withShipping, arrives tomorrowAqueon Adjustable PRO Aquarium Heater Up to 30 Gallons, 100 Watts $24.99 Was $34.99
Now$2499current price Now $24.99, Was $34.99$34.99Aqueon Adjustable PRO Aquarium Heater Up to 30 Gallons, 100 Watts
15 out of 5 Stars. 1 reviewsSave withShipping, arrives tomorrowAqueon Submersible Aquatic Flat Heater Mini Up to 2.5 Gallons, Black, 5 Watts $17.14
$1714current price $17.14Aqueon Submersible Aquatic Flat Heater Mini Up to 2.5 Gallons, Black, 5 Watts
1394.2 out of 5 Stars. 139 reviewsSave withShipping, arrives tomorrowTetra Whisper IQ Power Filter 30 Gallons, 175 GPH, With Stay Clean Technology $31.97 $31.97/count
$3197current price $31.97$31.97/countTetra Whisper IQ Power Filter 30 Gallons, 175 GPH, With Stay Clean Technology
573.4 out of 5 Stars. 57 reviewsSave withShipping, arrives tomorrowAqueon Preset Aquarium Heater Black, 100 Watts, Up to 30 Gallons $20.82 Was $23.76 $1.00/ea
Now$2082current price Now $20.82, Was $23.76$23.76$1.00/eaAqueon Preset Aquarium Heater Black, 100 Watts, Up to 30 Gallons
144 out of 5 Stars. 14 reviewsSave withShipping, arrives tomorrow
Customer ratings & reviews
How item rating is calculated
Reviews summary
Pros
- : Offers good value at this cost.
- : Designed for smaller aquariums with limited space.
- : Ideal for compact spaces, maintaining steady temperature.
Neutral
- : Can maintain optimal temperatures, but may fluctuate.
Cons
- : Fails to maintain or reach set temperature consistently.
- : Indicator light operation is inconsistent, sometimes not turning on or staying on briefly.
Generated by AI
Customer images
+15 images
Sort by |
Showing 1-3 of 327 reviews
Dec 15, 2025
Walmart customer
Item details
Sold byMirwood LLCDelivered byWalmartSize: 200-watt (40-55 Gal)
5 out of 5 stars review
Verified Purchase
The perfect heater.
The fish tank heater is easy to install and it heats the tank to the temperature needed. The price was very affordable.. My turtles are enjoying the heat.
Helpful?2JKJONHFDBL312177656
Feb 20, 2013
Kaj4711
5 out of 5 stars review
Verified Purchase
Great heater for small tank.
I bought this heater for my daughters new betta fish 2 gallon tank. I love the fact that it suctioned on the side of the tank & also has an auto shut off when it reaches correct temp. He dif. seems to like it being warm.
Helpful?2JKJONHFDBL312177656
Sep 28, 2025
Gary
Top Reviewer
Item details
Size: 50-watt (10 Gal)
5 out of 5 stars review
Verified Purchase
works great in my 5 gallon tank
Helpful?2JKJONHFDBL312177656
Frequently bought together
Frequently bought together, Tetra Submersible Aquarium Heater, 50-Watts
Tetra Submersible Aquarium Heater, 50-Watts $15.27
$1527
current price $15.27Tetra Submersible Aquarium Heater, 50-Watts
3973 out of 5 Stars. 397 reviews
Frequently bought together, Tetra EasyBalance pH and Alkalinity Regulator Aquarium Water Conditioner, 3.38 oz
Best seller Tetra EasyBalance pH and Alkalinity Regulator Aquarium Water Conditioner, 3.38 oz $6.27 $1.86/fl oz
Best seller
$627
current price $6.27$1.86/fl oz
Tetra EasyBalance pH and Alkalinity Regulator Aquarium Water Conditioner, 3.38 oz
1694.4 out of 5 Stars. 169 reviews
Frequently bought together, biOrb FLOW 15 Aquarium with MCR Light - 4 Gallon, White, Acrylic
biOrb FLOW 15 Aquarium with MCR Light - 4 Gallon, White, Acrylic $200.53
$20053
current price $200.53biOrb FLOW 15 Aquarium with MCR Light - 4 Gallon, White, Acrylic
Current price is $222.07
Items may be delivered on different dates