Product description
Digital Display
Let you monitor water tempeature at a glance
DUAL PROTECTION KEEP YOUR FISH SAFE 
Error code “EE” means water temperature exceed 97.
Error code “Er” means water level dips too low, you have to place the heater deeper.
Perfect for Saltwater Aquarium! Premium Heating Element
Protective guard protects fish from getting touch with heating element
4 Size Available
Add to Cart
Add to Cart
Add to Cart
Add to Cart
Add to Cart
Add to Cart
Add to Cart
Customer Reviews
4.3 out of 5 stars 249
4.3 out of 5 stars 249
4.3 out of 5 stars 249
4.3 out of 5 stars 924
3.6 out of 5 stars 10
4.4 out of 5 stars 15
3.8 out of 5 stars 28
Price
$19.99$19.99
$21.99$21.99
$22.99$22.99
$17.99$17.99
$26.59$26.59
$28.49$28.49
$44.09$44.09
Dimension
4.3”x 1.8”x 0.9”
4.3”x 1.8”x 0.9”
4.3”x 1.8”x 0.9”
4.5”x 2.6”x 1.4”
5”x 3”x 1.1”
5”x 3”x 1.1”
10.6″x3.3″x1″
For Fish Tank
2-5 gal
5-10 gal
10-20 gal
1-6.5 gal
25-35 gal
35-45 gal
80-220 gal
Temp Range
59°F to 93°F
59°F to 93°F
59°F to 93°F
63°F to 94°F
59°F to 93°F
59°F to 93°F
59°F to 93°F
Power Cord Length
6.5 ft
6.5 ft
6.5 ft
6.5 ft
6.8 ft
6.8 ft
—
Indicator Light
✔
✔
✔
✔
✔
✔
✔
Package Dimensions : 6.34 x 5.31 x 1.85 inches; 9.91 ounces
Date First Available : November 17, 2025
Manufacturer : hygger
ASIN : B0FC2CWYTC
Best Sellers Rank: #23,068 in Pet Supplies (See Top 100 in Pet Supplies) #43 in Aquarium Heaters
Customer Reviews: 4.3 4.3 out of 5 stars (249) var dpAcrHasRegisteredArcLinkClickAction; P.when(‘A’, ‘ready’).execute(function(A) { if (dpAcrHasRegisteredArcLinkClickAction !== true) { dpAcrHasRegisteredArcLinkClickAction = true; A.declarative( ‘acrLink-click-metrics’, ‘click’, { “allowLinkDefault”: true }, function (event) { if (window.ue) { ue.count(“acrLinkClickCount”, (ue.count(“acrLinkClickCount”) || 0) + 1); } } ); } }); P.when(‘A’, ‘cf’).execute(function(A) { A.declarative(‘acrStarsLink-click-metrics’, ‘click’, { “allowLinkDefault” : true }, function(event){ if(window.ue) { ue.count(“acrStarsLinkWithPopoverClickCount”, (ue.count(“acrStarsLinkWithPopoverClickCount”) || 0) + 1); } }); });
Easy To Hide Compact Design — Slim flat profile mini aquarium heater measures 4.3”x 1.8”x 0.9”, which is quiet space saving and easy to hide behind filter/wood/rock with two strong suction cups mount. 50W aquarium heater is suitable for 5-10 gallon freshwater/saltwater aquariums, turtle tanks, betta tanks and planted tanks
Convenient Digital Display — LED digital readout is convenient and accurate, displaying real time water temperature and indicator light. It will be red when heating, green light when the proper temperature has been reached. Allows you monitor aquarium water temperature at any time
Adjustable Temperature & Memory Function– Betta fish heater with external control allows you quick set temperature without getting hands wet especially in winter, adjustable wide temperature range of 59°F to 93°F in 1-degree increments. Memory function that remembers last setting, so you don’t have to reset temperature after power failure
Safety Shut Off Protection — small fish tank heater would automatically turn it off and flashing error code if the heater is not fully submerged, which ensure it doesn’t overheat and cause harm to your livestock. Shatterproof plastic guard protects fish/turtle from impact and making contact
Safe Rugged Construction — Built in shatterproof quartz tube wrapped with two heating element mica plate and nickel wire, along with high-impact plastic housing, hygger fish tank heater ensures the safety of your pets while maintaining proper, constant temperature
