Search  for anything...

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

  • Based on 3,953 reviews
Condition: New
Checking for product changes
$11.97 Why this price?
Save $4.00 was $15.97

Buy Now, Pay Later


As low as $2 / mo
  • – 4-month term
  • – No impact on credit
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout. Payment plans are offered through our trusted finance partners Klarna, PayTomorrow, Affirm, Afterpay, Apple Pay, and PayPal. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Selected Option

Free shipping on this product

30-day refund/replacement

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.


Availability: Only 7 left in stock, order soon!
Fulfilled by Amazon

Arrives Friday, Jan 24
Order within 14 hours and 53 minutes
Available payment plans shown during checkout

Pattern Name: 50W


Features

  • Wide Application: 50W aquarium heater, length: 7.8*1*1 in (20*2.5*2.5 cm), suitable for 5-15 gallon aquariums, also suitable for seawater and freshwater, can be used in fish tanks and turtle tanks.
  • Safe: Explosion-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 Temperature: This 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.
  • Complete Accessories and Warranty: This aquarium submersible heater comes with all the accessories you need, except for a stick-on thermometer, 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.
  • Note: This 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

50W 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. 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. We always keep improving our products and please feel free to contact if you have any questions or suggestions.

Is Discontinued By Manufacturer ‏ : ‎ No


Product Dimensions ‏ : ‎ 7.8 x 1 x 1 inches; 8.15 ounces


Item model number ‏ : ‎ HP-608


Date First Available ‏ : ‎ May 30, 2019


Manufacturer ‏ : ‎ IBAY


Country of Origin ‏ : ‎ China


Best Sellers Rank: #6,115 in Pet Supplies (See Top 100 in Pet Supplies) #13 in Aquarium Heaters


#13 in Aquarium Heaters:


Customer Reviews: 4.5 4.5 out of 5 stars 3,953 ratings


Item Weight: 8.1 ounces


Manufacturer: IBAY


Country of Origin: China


Item model number: HP-608


Date First Available: May 30, 2019


Item Package Dimensions L x W x H: 11.06 x 3.23 x 1.85 inches


Item Dimensions LxWxH: 7.8 x 1 x 1 inches


Brand Name: HITOP-Fish


Target Audience Keyword: fish


Directions: This aquarium heater must be fully submerged in water to use.


Warranty Description: 12-month warranty


Model Name: HP-608


Color: blue


Size: 50W


Material: ceramic, glass


Age Range Description: Adult


Number of Items: 1


Included Components: All needed accessories


Specific Uses for Product: heat water in fish tank


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Friday, Jan 24

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.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • If you're looking for an efficient and affordable heater, this one is a great choice.
Pattern Name: 100W
The 50W Adjustable Aquarium Heater is a fantastic product for small to medium-sized aquariums! It's compact, easy to set up, and works perfectly to maintain a stable water temperature. The adjustable temperature dial is precise, allowing me to set the ideal range for my tropical fish. I also appreciate the submersible glass design—it’s sturdy and doesn’t take up much space in the tank. The indicator light is a helpful feature, letting me know when it's actively heating. So far, it’s been reliable and keeps the water within a consistent range without fluctuations. Perfect for beginners and seasoned aquarium owners alike! ... show more
Reviewed in the United States on November 17, 2024 by California girl

  • Heater
Pattern Name: 50W
I use one of these for my 4 gallon tank and I got another one for my 10 gallon tank. I haven't had any issues with. The fish seem happy and it stays the temperature I want.
Reviewed in the United States on January 4, 2025 by Mariah Baker

  • 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

  • Really nice for the price
Pattern Name: 300W
Heater works perfectly, temperature gauge strip not at all.
Reviewed in the United States on May 25, 2024 by Plowguy4

  • Super good deal
Pattern Name: 25W
It was easy to install, perfect length for my tank, and the size was good as well. Real good deal, but I’ve only had it a week. Only time will tell how durable or how long it will last. For the price I paid, I’d be happy to get 18 months.
Reviewed in the United States on November 11, 2024 by Thumper Rodriguez

  • WORKS GREAT
Pattern Name: 100W
It's wonderful and worked immediately for my 30gallon
Reviewed in the United States on January 9, 2025 by Aundreya

  • 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

  • Is this safe?
Pattern Name: 300W
Since this is submersible, I opted to test the water for electric current before putting my hand or a fish in the water. The water was electrified according to my meter. The moment I unplugged it, it was no longer electrified. Maybe this unit is an unsafe dud?
Reviewed in the United States on January 4, 2025 by Jason

Can't find a product?

Find it on Amazon first, then paste the link below.