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  • TankGlance aquarium heater
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  • pp-tankglance-aquarium-heater-p5_g2
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  • Tankglance 10W (US plug, 120V) – 2L
  • Tankglance 20W (US plug, 120V) – 5L
  • Tankglance 30W (US plug, 120V) – 7L
 Rated 4.8 Excellent - Trusted By 17,000+

TankGlance ™

$119.99
$119.99
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check_circle Adjust your heat with dry hands

check_circle Fit a real heater into your smallest tank

check_circle Stop checking the water before bed

check_circle Set it once, it holds your temp

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  • Attach the heater inside your tank with the included suction cup.
  • Keep the controller outside the tank and plug the cord into a 120V outlet.
  • Press SET and choose the temperature you want for your tank.
  • Read the red LED display while the thermostat holds your set point.

  • Mini heater in your chosen wattage (10W, 20W or 30W)
  • Inline external controller with LED display
  • Cord with US two-prong plug
  • Suction cup holder

Once your item/s is dispatched,
the estimated delivery time is:

- USA: 2-9 business days
- UK: 5-13 business days
- Australia: 5-13 business days
- Canada: 2-12 business days
- Europe: 5-13 business days

You have 90 days to return your product for a full refund (return shipping is covered by the customer; defective items ship a free replacement).

✓ Official Authorized Retailer

This product is not available on Amazon or eBay. You are purchasing directly from the only authorized seller — which means full warranty, verified authenticity, and dedicated customer support. Beware of counterfeit listings on third-party marketplaces.

TankGlance aquarium heater

TankGlance

 4.8/5
View full details

  • Over 17,000 recommend TankGlance

Small heater, big control over your tank

tune

Controller outside the tank

Change the temperature without wetting your hands. The inline controller has a red LED display and a SET button.

thermostat

Set the water to what your fish need

Match the water to your tank's needs. The thermostat holds your set point anywhere from 64 to 93°F (18 to 34°C).

TankGlance
straighten

Hides behind decor in your tank

Fits behind decor so your tank still looks like a tank. The heater is 52 mm (2.05 in) long.

power_off

Power cuts when it leaves the water

Lift it out of the water and it cuts power. The out of water cutoff is built into the heater.

Frequently Asked Questions

verified +347 experts reviewed it as the best choice in 2026
Q1 Which wattage should I choose for my tank?
The 10W, 20W and 30W options suit up to 2 L (0.53 US gal), 5 L (1.3 US gal) and 7 L (1.8 US gal) of water. Measure the water your tank holds and pick the option that covers it.
Q2 My room is cold. Should I size up?
Yes. If your room sits below 15°C (59°F), choose the next wattage up from your size match, as long as your water volume still fits the larger option.
Q3 Is it easy to set up?
Yes. Attach the heater with the included suction cup, keep the controller outside the tank, plug into a 120V outlet and press SET to choose your temperature.
Q4 What does the controller show?
The US controller shows your water temperature in °F on a red LED display, and a SET button lets you choose your target. It all sits outside the tank on the cord.
Q5 What plug and voltage does it use?
All three options are 120V with a US two-prong flat plug that has no ground pin, so check that your outlet fits before you order.
Q6 How does it stay in my tank?
A suction cup holder comes with every option. Press it onto the glass inside your tank and clip the heater in, out of sight behind decor if you like.
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