HITOP Compact Submersible Aquarium Heater, 100 W, digital temperature controller, for saltwater and freshwater
HITOP Compact Submersible Aquarium Heater, 100 W, digital temperature controller, for saltwater and freshwater
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HITOP Compact Submersible Aquarium Heater, 100 W, digital temperature controller, for saltwater and freshwater

Where HITOP Compact Submersible Aquarium Heater, 100... fits in your dog's day
Three short notes on who this product suits, how owners use it and what they keep an eye on, with your vet as the person to ask about health questions.
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1Who it's for
Owners who want everyday gear that fits their dog's size and makes walks, meals and rest at home simpler to manage.
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2How to use it
Compare the size or capacity details with your dog's measurements.
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3What owners notice
Owners look at how the item fits into the daily routine and how well it holds up after several weeks of regular use on walks, at meals and at home.
About this product
Set the temperature from outside the tank with this 100 W aquarium heater, which uses an external controller and suits both freshwater and saltwater setups. The quartz glass tube measures 0.8 x 0.8 x 9.8 inches, and the heater is made for betta fish tanks, turtle tanks and other small fish tanks from 12 to 30 gallons.
What the features do in a tank
The external controller is where you set the temperature, and it also carries a heating indicator light that comes on while the heater is working. A digital LED display on the controller shows the current water temperature and the temperature you have set.
The heating element sits inside a tube of thickened quartz glass, and the unit is sealed to keep water out. The thermostat range runs from 68 to 93 °F, and the 5.6 ft cable lets the controller sit away from the tank.
Which tanks does it fit?
Check the water volume first: the heater is intended for small fish tanks holding 12 to 30 gallons, including betta fish tanks and turtle tanks. It works in both seawater and freshwater, so a marine setup and a tropical community tank are both within its stated use.
The 5.6 ft cable needs a route from the tank to a power outlet.
| Model | Q2 |
|---|---|
| Target audience | Fish |
| Size | (12-30Gal) 100W |
| Item dimensions (L x W x H) | 2 x 2 x 25 cm (0.8 x 0.8 x 9.8 in) |
| Specific uses | Heat water in fish tank. |
Power and controls
The heater draws 100 W, and its temperature is set through the external controller rather than a dial on the glass tube. The adjustment range is 68 to 93 °F, and the LED display reports the real-time water temperature alongside the set point.
A heating indicator light on the controller shows when the element is active. The cable runs 5.6 ft from the heater to the controller and outlet.
What comes in the box
- One 100 W heater with external controller
- Two suction cups are included for mounting the heater
- A bottom cover for the glass tube
- A sticker thermometer
Questions buyers ask
What size tank is this heater for?
It is intended for small fish tanks from 12 to 30 gallons, including betta fish and turtle tanks.
Can it be used in saltwater?
Yes, the heater is suitable for both seawater and freshwater.
How long is the cable?
The cable measures 5.6 ft, which separates the heater in the tank from the controller and outlet.
What temperature range can I set?
The controller allows a setting from 68 to 93 °F.
How big is the heater itself?
The unit measures 2 x 2 x 25 cm, or 0.8 x 0.8 x 9.8 inches.
Product details
| Brand | HITOP |
|---|---|
| Product type | Aquarium Heater |
| Department | HITOP Canada |
| Sold by | DogJointly, operated by YALEO LLC |
| Delivery | Free standard US delivery, usually 7 to 14 business days after 1 to 3 days to prepare |
| Returns | 30 days on unopened items in their original packaging, with damaged or wrong items covered at our cost |
Delivery and tracking
Standard delivery is free to every US address, we prepare orders in 1 to 3 business days, delivery usually takes 7 to 14 business days, and the tracking link arrives by email when the parcel ships.
Returns and refunds
You can return unopened items in their original packaging within 30 days of delivery. Damaged, faulty or wrong items are replaced or refunded at our cost, so please read the refund policy and contact us before you send anything back.
How Subscribe and Save works
Choose the subscription option above the cart button to receive this product on a regular schedule at the lower subscription price. You can skip a delivery, change the schedule or cancel from your account or by writing to support@dogjointly.com.
Multi-buy savings
Pick 2, 3 or 4 units in the quantity cards to save 10, 15 or 25 percent on the item price. The saving is shown in the cart before checkout, so you can compare the total with a single unit.
Labels, ingredients and your vet
Ingredient lists and serving tables can change between batches, so the label on the pack you receive is the reference to follow. Please ask your vet before starting a supplement, especially for a senior dog or a dog on medication.
Questions about this product
Is HITOP Compact Submersible Aquarium Heater, 100 W, digital temperature controller, for saltwater and freshwater available in the United States?
Yes, it is in stock at DogJointly and ships free to US addresses, usually within 7 to 14 business days after 1 to 3 days to prepare.
How should I compare HITOP Compact Submersible Aquarium Heater, 100... with similar products?
Compare the brand, format, serving table and pack size in the details above with similar items in HITOP Canada, and check the choice with your vet.
Where can I find delivery and returns information?
Delivery and returns are summarised on this page and set out in full in the shipping and refund policies linked in the footer of every page.
Guides and order help
Reading that helps you compare products, plus the pages that answer delivery and return questions.










