HITOP 50W 100W 300W Adjustable Aquarium Heater, Submersible Fish Tank Heater Thermostat with Suction Cup (300W)
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Availability:
Only 10 left in stock, order soon!
Arrives
Mar 20 – Mar 21
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Pattern Name: 300W
Features
- [Aquarium heater]: HITOP 300W aquarium heater, length 10.4-inch, power cord 4.9ft, designed for small fish tanks, recommended for aquariums 45-60 Gallons.
- [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 within2F error. Comes with an sticker thermometer to detect water temp at any time.
- [Thickened glass]: 2mm thickened quartz glass, 33% thicker than normal aquarium heaters, much safer for both human and animals.
- [Accessories]: A stick-on thermometer, and three suction cups meet your needs. We provide 12 months after-sales service.
Package Dimensions : 13.3 x 3.19 x 1.85 inches; 10.23 ounces
Date First Available : January 3, 2020
Manufacturer : Haisen
Best Sellers Rank: #2,047 in Pet Supplies (See Top 100 in Pet Supplies) #3 in Aquarium Heaters
#3 in Aquarium Heaters:
Customer Reviews: 4.4 4.4 out of 5 stars (8,302)
Item Weight: 10.2 ounces
Manufacturer: Haisen
Date First Available: January 3, 2020
Item Package Dimensions L x W x H: 13.3 x 3.19 x 1.85 inches
Brand Name: HITOP
Target Audience Keyword: fish
Size: 300W
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Mar 20 – Mar 21
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
Pattern Name: 50W
Build quality is amazing. The temperature is accurate. The value for money is economical. It’s easy to set up. I works really well, I love it. I use it on my 10 gallon tank and it keeps it warm. I bought the 50W.
Reviewed in the United States on October 30, 2025 by lu21
Pattern Name: 25W
The heater was perfect for my 10 gallon tank but was too much heat for my 2 gallon tank. No issues whatsoever.
Reviewed in the United States on November 24, 2025 by Diane Cathey
Pattern Name: 300W
Works well. Bought the 300w unit for a 90 gal tank. Well packed, good instructions, easily set temperature. Pleased, recommended..
Reviewed in the United States on December 4, 2025 by pumper
Pattern Name: 300W
Stopped working after 6 months of use. The light is on constantly but definitely no heat. I’ve lost some fish. Getting a replacement today but of course not the same one. *EDIT* The company has reached out to me resulting in a better review. I truly admire this company for actually trying to make things right. They aren’t a “leave you to suffer” company. They actually care. They went out of their way to make an effort.
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Reviewed in the United States on May 13, 2025 by Rebecca Ford
Pattern Name: 200W
Had for a while now and has always kept my tank at the temp I want it at. It seems very durable and is not hot to the touch for safety of fish. It is pretty compact and was easy to install. It automatically turns on and off when needed which is very nice.
Reviewed in the United States on November 30, 2025 by Kylee ward
Pattern Name: 50W
Works well in a 10 gallon tank. It was easy to set up and the suction cups hold strong. It's been working well for over a year now. Keeps temperature in the 70's. Easy to clean, when needed too.
Reviewed in the United States on October 31, 2025 by Rebecca
Pattern Name: 200W
This product actually heats evenly and correctly. Spend the money and get good quality. I’ve bought cheaper ones before and they haven’t worked as well. I like the dial to set the temperature versus a digital one because I find that always fails.
Reviewed in the United States on October 13, 2025 by Julie Kingsley
Pattern Name: 100W
Overall its a pretty solid fish tank heater. I have 2 complaints, however. The gauge that they use as a visual aid for temperature adjustment is......extremely unintuitive. There's a bar that is white, and has "74-76" printed on it, for example, and as you turn the knob the bar turns to red. It's not a big deal, but for folks that throw away the instructions, it's a bit confusing how to actually read it for awhile. But my biggest issue with it, is simply the size. A 50 watt heater for a 10 gallon tank has ZERO reason to be this large. It's so tall it literally touches the layer of substrate in my tank (which is only an inch deep) and my tank is just a standard 10 gallon, no weird dimensions. Yes, it works, but if you have something with non-standard dimensions you might have issues. However, it gets up to temp very quickly (no surprise, it's a big heating element) and once up to temp, it maintains incredibly well. Dont hesitate to buy a higher wattage than you think you need (within reason). Sure, it'll draw more power, but....it will also have to run far less. I set mine to 78 degrees and i swear that aside from the initial heating, i've never even seen the power light on, and it stays locked in at exactly 78. It never fluctuates. Overall the performance is great, it functions flawlessly, i'm just not super impressed with the size. It seems like it could have easily been an inch or even 2 shorter, and still been sufficiently sized for the size tank it's for.
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Reviewed in the United States on August 15, 2025 by Hunter R.