★★★★★
Good heater
Johnny Ullman—February 14, 2026✓ Verified purchase
The heater works great and keeps the tank water to the desired temperature Read more
HITOP 25W 50W 100W 200W 300W Adjustable Aquarium Heater Submersible Fish Tank Heater Thermostat with Suction Cup 50W
$12.98$14.97
About this item
- 🐟HITOP aquarium heater 50W, length 7.2-inch, power cord 4.9ft, designed for small fish tanks, recommended for aquariums up to 15 Gallons.
- 🐟 Thickened Glass: 2mm thickened quartz glass, 33% thicker than 1.5mm normal aquarium heaters, much safer for human and your lovely fishes, your pets will no longer fear the winter.
- 🐟Adjustable and easy to use: This aquarium heater, adjustable temperature range 68 ~ 93 °F, after setting the temp you want, will on or shut off automatically when the water temperature changes, no extra adjustment is required.
- 🐟Accurate Temperature Control: This fish tank heater built-in thermostat, will automatically keep the water at the set temperature within±2°F error. Comes with an sticker thermometer to detect water temp at any time.
- 🐟 Easier installation, you can install it with any angle by 2 powerful suction cups, just make sure it is under water fully. Besides, we provide 1 more extra suction cup for spare (total 3 PCS), and we provide 12 months after-sales service.
$12.98
Was $14.97Save $1.99
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Technical specifications
| item_weight | 8.8 ounces |
|---|---|
| manufacturer | Haisen |
| item_model_number | HP 608 |
| date_first_available | March 1, 2019 |
| item_package_dimensions_l_x_w_x_h | 12.4 x 3.2 x 1.9 inches |
| item_dimensions_lxwxh | 7.87 x 0.98 x 0.98 inches |
| brand_name | HITOP |
| target_audience_keyword | fish |
| size | 50W |
| is_discontinued_by_manufacturer | No |
| product_dimensions | 7.87 x 0.98 x 0.98 inches; 8.78 ounces |
| best_sellers_rank | #2,867 in Pet Supplies ( See Top 100 in Pet Supplies ) #5 in Aquarium Heaters |
From the brand
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Customer reviews
4.48,511 ratings
Customers say
Customers find the aquarium heater easy to use and install, works well for 5-gallon tanks, and offers good value for money.
★★★★★
Great heater
Rita C.—January 13, 2026✓ Verified purchase
I got the 50W for my 7.5 gallon tank. I’ve never had a problem with this heater. It’s always heated my water to my desired temperature. The only thing I would suggest is to monitor your water temperature within the first couple hours of introducing the heater as it needs some time to adjust. Read more
★★★★★
Keeps things warm
Walter—February 3, 2026✓ Verified purchase
Works as expected. I use it for my chickens. I have their water in a 5 gallon bucket with those little orange nipple valves installed on all sides. I have this thing cranked up to 90 degrees and amazingly it keeps the water and the valves from freezing even when the temp dropped down to -9 degrees F. outside. So the chickens can get to their water on days when a water bowl freezes solid inside of a couple hours. Read more
★★★★☆
Heater thermometer is inaccurate
Coz—February 7, 2026✓ Verified purchase
I brought the 100 watt version The heater works fine, however the internal thermometer is inaccurate. I have a separate Thermometer in my aquarium. When I set the heater to 78 F. The separate thermometer was reading 70 F. However the room was very cold. So I assumed it was struggling maintaining temperature. So I added a small 50 watt heater from tetra which was set to 78 automatically. The temperature went from 70 F To 74F. I decided to raise the temperature on the hiptop heater and now it holding to 77F. Which is fine for my needs. Read more
★★★★★
So far so good!
Scott—January 11, 2026✓ Verified purchase
I could not get the usual brand I buy fast enough so I took a chance on this one. So far it is working perfectly. It is easy to adjust to the temp that you want and comes with suction cups to make installing easy. Read more
★★★★★
Good heater
Spencer—February 5, 2026✓ Verified purchase
For smaller tanks this has been an amazingly reliable heater, doesn't look bad has been durable, very easy to use as a plug and play and does not take up a ton of room in my 10 gallon tank Read more
★★★☆☆
Works, but barely.
Holley Bell—January 6, 2026✓ Verified purchase
Technically it works but certainly not well. I’ve had to turn this heater more than 6 degrees (f) higher than listed. Water temp does not stay stable. I’ve been using two different thermometers to measure temp fluctuations. Will probably have to buy a different heater before I add a betta to my tank. Can’t recommend this one. Read more
★★★☆☆
Pretty good for the price, not very accurate though.
Hailey—February 14, 2026✓ Verified purchase
Waits till my water is 5 degrees too cold to actually start heating. I have to set it to 82 degrees to get it to heat to 78 degrees. Not accurate, not the best, but really it’s worth the price since it is a really cheap heater, and it hasn’t boiled my fish. Don’t buy it if you’re particular about the temperature though. The suction cups are great. Really hard to get off once you stick it to the glass, so I haven’t had any issues with it unsticking itself. Kinda big for the wattage, but doesn’t take up too much space in my ten gallon. Easy to set once you figure out how much your heater is off. Easy enough to hide behind your plants for a good look. Read more
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