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HITOP-Fish

Hitop 25W/50W/100W/300W Adjustable Aquarium Heater, Submersible Glass Water Heater for 5 – 70 Gallon Fish Tank (25W)

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Availability: Only 7 left in stock, order soon!
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Arrives Monday, Mar 30
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Pattern Name: 25W


Features

  • Wide Application25W aquarium heater, length: 7.8*1*1 in (20*2.5*2.5 cm), suitable for up to 10 gallon aquariums, also suitable for seawater and freshwater, can be used in fish tanks and turtle tanks.
  • SafeExplosion-proof glass heater, this fish tank heater is made of 2mm thickened quartz glass, 33% thicker than ordinary glass, not easy to crack, which is very safe for people and aquatic animals.
  • Adjustable TemperatureThis fish heater adopts 8-slot multi-branch heating wire ceramic frame, better heat dissipation, long service life. The adjustable temperature range of the water heater for fish tank is 68F - 93F (20C - 34C), and we also included a thermometer sticker, which is more convenient to check the water temperature.
  • Protecting Fish SafetyEven if continuous heating is required, this aquarium heater will heat for a period of time and then pause for a few minutes (the indicator light will turn off during the pause), gradually reaching the set temperature. This design helps keep water temperature from fluctuating too much, preventing fish from feeling uncomfortable and protecting their safety.
  • Complete Accessories and WarrantyThis aquarium submersible heater comes with all the accessories you need, not only has a stick temperature, it also comes with 3 suction cups, one for replacement. We provide a 12-month warranty service for this heater, so you can buy with confidence, if you have any questions, please feel free to contact us, we will reply within 24 hours.
  • NoteThis fish tank heater must be fully submerged in water for use. If you need to change the water or clean the fish tank, please cut off the power first, cool the heater for more than 15 minutes, and then take it out after the heater is completely cooled.

Description

25W Aquarium Heater, 7.8 x 1 x 1 in,1.5M/4.9ft cable This fish tank heater is simple and beautiful in appearance, placed in your aquarium, unobtrusive, and will not destroy the fish tank landscape. You and your fish will like it. We adopted 2mm thickened quartz glass, much safer for both human and animals. And this aquarium heater will turn off automatically when reaches temperature you set, without overheating. For the products, we have been keeping improving. Please contact us when there is any question or suggestion in use. Features: 1. Good in maintain temp. 2. Both suitable for freshwater and saltwater. 3. Complete accessories: An extra stick-on thermometer(just peel and stick) and 2 extra suction cups are provided for spare(total 3). 4. Better construction: Adopt 8-slot multi-branched heating wire ceramic frame,better heat dissipation. Cautions: 1. The heating part must be fully submerged in the water to avoid dry-burning,otherwise will cause damage to heater. 2. Please clean the heater regularly to remove dirt from the heating tube and keep it in good working condition. 3. It is forbidden to pull the heater adjustment knob outwards. 4. If you need to change the water, please turn off the power, let the heater cool down for more than 20 minutes, wait for it to cool down completely before taking it out.

Package Dimensions ‏ : ‎ 11.1 x 3.19 x 1.85 inches; 8.15 ounces


Item model number ‏ : ‎ HP-608


Date First Available ‏ : ‎ December 6, 2023


Manufacturer ‏ : ‎ IBAY


Best Sellers Rank: #15,715 in Pet Supplies (See Top 100 in Pet Supplies) #42 in Aquarium Heaters


#42 in Aquarium Heaters:


Customer Reviews: 4.4 4.4 out of 5 stars (4,178)


Item Weight: 8.1 ounces


Manufacturer: IBAY


Item model number: HP-608


Date First Available: December 6, 2023


Item Package Dimensions L x W x H: 11.1 x 3.19 x 1.85 inches


Brand Name: HITOP-Fish


Warranty Description: 12-month warranty


Model Name: HP-608


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Monday, Mar 30

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.

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Similar Products

Top Amazon Reviews

    • Great Value Aquarium Heater – Works Well!
Pattern Name: 300W
The Hitop 300W Adjustable Aquarium Heater is a great value for the price. It heats my 40 gallon tank quickly and maintains a stable temperature, which is important for keeping my fish healthy. The adjustable temperature control is easy to use, and the submersible glass design feels sturdy and well-made. I also have a second one for heating water for my water changes. Love how quickly it can heat up 10-15 gallons of water. This heater is suitable for tanks up to 70 gallons, making it a great option for larger setups. It’s also affordable compared to other heaters with similar features. Overall, it’s a simple, effective, and budget-friendly aquarium heater that gets the job done. Highly recommend! ... show more
Reviewed in the United States on March 30, 2025 by Tamera B.
    • Good quality aquarium heater
Pattern Name: 100W
This is a good heater. I have 2 55-gallon tanks. I have two heaters in each, just in case. These are easy to read and work fine.
Reviewed in the United States on December 16, 2025 by Judy Burr
    • Good news! It does shatter safely when I'm a careless dumdum.
Pattern Name: 100W
I use two of these, one in my tank and one to heat my buckets for water changes. Today I messed up by doing exactly what the description tells you not to do—I left it running while not submerged. "It'll be fine," I said, "I'll be right back with new water, it'll be out for less than a minute." Like a genius. Well, the perfectly predictable happened. By the time I got back (more than a minute later), it was overheating and sizzling itself dry. Then, like a genius who didn't take physics in high school, I thought, "Well, I'd better put it back in the new water to cool it down!" As advertised, this heater did not explode. It shattered in a perfectly safe fashion, with a couple of large, easily visible chunks of glass falling straight down into the bucket, no flying shrapnel, etc. Most of the glass just cracked and hung together for a few more minutes while I cooled it down to throw it away, though the bottom quarter or so did eventually fall off. A worse made product could have absolutely exploded and sent shrapnel flying when I did the dumb thing I did. Nothing is unbreakable when you add human error to the mix, but you can make things break comparatively safely, and this heater did that. I've ordered another to replace it. ... show more
Reviewed in the United States on August 2, 2021 by sw
    • Adjustable Aquarium Heater
Pattern Name: 50W
I am using Aquarium heater working fine no issue. Thanks
Reviewed in the United States on February 11, 2025 by Asif Zia
    • It's a tank heater.
Pattern Name: 50W
Heating element in a glass tube. Pretty simple but also very critical. The best part of this is the temperature adjustment. These have gotten much better and more accurate over the years. Previous versions 10-15 years ago could have as high as +/- 3-4 degrees f. The newer ones I've used seem to be much more accurate at whatever temp you set them on. Also, the glass used is much better quality so the fear of putting your hand into a tank to remove it and getting shocked (not electrocuted) is much rarer if at all these days. Decades ago that WAS a reality many times. As for the suction cups that hold the heater in your tank I chose not to use them. My tank is loaded with coraline algae since it's a reef tank so any hope of having a clear spot on my tank wall is a fantasy. It stays in place by creating a drip loop and only having an inch or two of cord going over the top and side of my upper tank. I set it a while ago and after 2-3 months of temp checks it's less than 1 degree f of difference. For the money it's definitely a good buy. And when it comes to heaters and pumps I ALWAYS have spares! You don't want to have either one of those two go out on you and not have time to get to a pet supply store in a reasonable amount of time, especially with lots of coral in your tank. It's a very worthwhile investment and safeguard! ... show more
Reviewed in the United States on March 31, 2024 by sha4rkbyt31
    • Great price
Pattern Name: 300W
Works just as good if not better as the more expensive in store brands
Reviewed in the United States on November 25, 2025 by TXwhsprs
    • Durable product
Pattern Name: 50W
Review Image by Veronica Veronica
So I’ve had this product for over a year now! Im leaving this review because we just got a new tank for our GloFish named “Cutie Pie”. She’s survived alot this past year and wanted to get her a new tank l. Everything is set up and cycling, but we need a heater. So I get to searching. Of course my BIGGEST fear is electrocuting Cutie Pie.. So I did all the research and scrolled for hours reading reviews. Then I remembered that I originally ordered her current one off Amazon but couldn’t remember the brand name to search it up. So I pulled up my past orders, typed his fish tank heater, and up it popped!!! I see some bad reviews, so I felt compelled to share my positive experience of this product. And I will be buying it again! Side note-The suction cups no longer worked after build up of algae, so I just let it hang in there. That’s the case with any suction cup though, they are easily replaceable, not a big deal. What’s important is it didn’t boil my fish, or electrify it. It’s still functioning as it did day one just dirtier. Even so, it looks aesthetically pleasing and sleek. ... show more
Reviewed in the United States on August 4, 2025 by Veronica Veronica
    • *Update* No longer recommend!!!
Pattern Name: 100W
Review Image by James L James L
***UPDATE*** so I changed my rating to 1 star. Both heaters are messed up. One isn’t keeping up and the other over heated so much that some of my fish died overnight. The water was so hot. They are unplugged and I’m letting it cool down. The remaining ones seem ok but time will tell. My angels are larger than my hand and my rainbow shark was huge. It sucks that I cut corners and purchased a cheaper unit and now I’m paying for it! Back to the other brands that I trust more! Bc I ordered these because they are cheap. This is my third one and they work ok. They aren’t great. This will be my last however. I ordered my last one about 36 days ago and the suction cups never held but then decided to bubble up. I’ve never had one do this before. It’s not hurting the heater it’s just really odd to me. I was going to return it but it’s a few days past the return window ... show more
Reviewed in the United States on April 13, 2024 by James L James L

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