Search  for anything...

HITOP 25/50/100/200/300W Adjustable Aquarium Heater, Submersible Fish Tank Heater Thermostat with Suction Cups

  • Based on 3,387 reviews
Condition: New
Checking for product changes

Buy Now, Pay Later


As low as $3 / 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

This item is eligible for return within 30 days of receipt

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: 12 left in stock
Fulfilled by Amazon

Arrives Sunday, Nov 24
Order within 2 hours and 22 minutes
Available payment plans shown during checkout

Pattern Name: 25W


Features

  • HITOP 25W aquarium heater, length 7.2-inch, power cord 4.9ft, designed for small fish tanks, recommended for aquariums up to 10 gallon.
  • Thickened Glass: 2mm thickened quartz glass, 33% thicker than 1.5mm normal aquarium heaters, much safer for human and your lovely fishes.
  • 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.
  • 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).We provide 12 months warranty.

Description

Read more With accessories 3 powerful suction cups: The heater can be firmly attached to the fish tank. 1 Sticker thermometer: Put it on the outside of the fish tank like a sticker to easily observe the water temperature. HITOP Adjustable Aquarium Heater How to use this aquarium heater? This aquarium heater, adjustable temperature 68 ~ 93 °F, will shut off automatically when the temperature is reached, Will also automatically turn on when the temperature is lower than the set temperature, no extra adjustment is required. Power: 25W Size:7.2in Cable wire:4.9ft Recommended for:5-10gallon fish tank Saltwater and fresh water Fish tank and turtle tank Read more Let's know the details of this fish heater! Adjustable aquarium heater: Turn the knob to set the temperature you need, the adjustable range is 68 ~ 93 °F(20-34℃).Evenly distributed heating wire:This vertical distribution of heating wires can make the heater more evenly dissipate heat to the surroundings.Adopt 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.Bottom protective cover: Effectively protect the heater and fish.Indicator light: Lights up when heating. How to install this aquarium heater correctly? This aquarium heater need to be completely submerged in water;This 25W heater should be placed in a place with good water circulation.It can be placed with any angle by 2 suction cups, gery color makes it easy to conceal behind plants or other decor according to your demands. Note: For all the Glass heaters, please check it carefully to see if there is any crack before using. (If there is any problem with the heater, we provide replacement, within 12 months.) 25W 50W 100W 200W 300W Aquarium plastic plant Size 7.2in/18.5cm 7.2in/18.5cm 8.8in/22.5cm 10.4in/26.5cm 10.4in/26.5cm Hight:9.8in Recommended for 5-10gallon 5-15gallon 15-30 Gallon 30-45 Gallon 45-60 Gallon Fish tank over 10in


Package Dimensions ‏ : ‎ 11.1 x 3.2 x 1.9 inches; 8.78 Ounces


Date First Available ‏ : ‎ June 12, 2020


Manufacturer ‏ : ‎ Haisen


Best Sellers Rank: #1,745 in Pet Supplies (See Top 100 in Pet Supplies) #5 in Aquarium Heaters & Chillers


#5 in Aquarium Heaters & Chillers:


Customer Reviews: 4.5 out of 5 stars 3,387 ratings


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Sunday, Nov 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


  • Good price, high quality, **Cation when setting temperature-runs warm.
Pattern Name: 50W
This 50w heater worked great for what I needed. It works nicely with my 6.5 gallon planted tank. Easy to set up. 3 included suction cups are high quality and seem durable. Power cord is longer than the heater I replaced it with. Unit itself is normal sized for similar heaters. Like several other reviewers, in my tank heater consistently runs about 4 degrees warmer then set. I have it set at 76F degrees and my personal thermometer is showing 79F degrees (off by over 2C). Have not used included stick on thermometer but it is a nice touch. I should also note that despite me keeping my room warmer at night my tank always maintains a steady temperature. Seems to run a few degrees warmer than set so be aware and watch your tank when you set it up if you have livestock. Have had for 2 weeks. Was sent with customer service manager contact, but did not reach out. I recommend this product for a low cost equation heater. If you found this review helpful please click the helpful button. :) ... show more
Reviewed in the United States on January 28, 2020 by James Rasmussen

  • Quality Heater!
Pattern Name: 50W
This heater works! I have the 50W in a 5 gallon tank and it does fine. I went through FOUR other heaters for my Betta fish, who had some trauma and really needed warm, comfortable, low stress tank conditions. I'm pretty new to aquariums and never realized how complicated this hobby can be! I'm really lucky that my Betta has survived my learning curve with the nano tanks, nitrogen cycle, and water temperature especially with the number of crap products out there claiming to be adequate that simply don't work. This one DOES. I had a really hard time getting my 3 and 5 gallon nano tanks above 70 degrees. I started with auto heaters at 10 and 15 W that claimed to be adequate for anything uo to 5 gallons - no joy, poor Betta suffered. Then I upgraded to an auto 50 W - nope. Poor Betta still suffered.. Then I upgraded to a H----er 50W adjustable - total crap - never got above 73 even though I cranked it to the max. This one FINALLY did the trick. Its able to heat a 5 gallon tank perfectly well with wattage to spare. Ive noticed that depending on the temp in the room I may have to adjust up or down about 2 degrees to compensate but it's always within a 2 degree variable range. I have a pretty cold room and if I set the heater at 80 it will hover between 78 and 82 depending on the rise and fall of the room temp. My Betta is FINALLY recovering after a long, iffy road and I really think most of that is due to this heater keeping the water warm enough. Very happy!!! One additional thing I would note is that this is a pretty tall heater so if you have a nano tank you might want to pay attention to the height measurements to make sure it fits well. ... show more
Reviewed in the United States on May 15, 2020 by DC Bibliophile

  • Horrible
Pattern Name: 50W
Horrible. Don’t get. Worked well for the first two weeks then stopped heating my tank. It then broke open and nearly fried my tank. Some brown something peaches into my tank so hopefully it won’t kill off any of my fish/snails. I would give this no stars if possible
Reviewed in the United States on August 28, 2019 by R1234567

  • Great heater!!
Pattern Name: 50W
I have a 5 gallon betta tank with an integrated filter system and this heater fits perfectly in the back!! I have a digital thermometer always reading and it keeps my tank from 81.7-82.0F it doesn't drop any less or go any higher which I appreciate never having to worry about it overheating and frying my fish. The stick on thermometer it comes with isn't all that accurate for me it always about 3 degrees off but it does give you the general range if you're not too worried about temperature! ... show more
Reviewed in the United States on August 25, 2019 by Lester Family

  • Runs hot but steady
Pattern Name: 100W
Runs hot. Fortunately, I set up our tank before we had any fish. I installed this heater and set the temp to 80 degrees. The next morning the water temp was 86 give or take a degree. I adjusted the heater down to 76/77 and now the temp stays at a constant 79/80. So if you're setting up a new tank without fish, you should be fine until you find the right temp setting. But don't switch heaters to this one when fish are already in the tank. ... show more
Reviewed in the United States on June 19, 2019 by Anna M

  • Good...Maybe?
Pattern Name: 50W
I had this heater for a couple months and put off writing a review until I had thoroughly used it or until something went wrong. It definitely is off a couple degrees in terms of settings, but once you figure it out, it isn't a big deal. I was doing a water change the other day and the heater broke. This could have been my fault due to water temp changes, but I've done water changes weekly and have never had an issue (and haven't done anything differently). So it only lasted a couple of months, BUT when it broke, it did not harm any fish. It did not leave shards of glass everywhere. I am going to be looking elsewhere for a replacement because I would like a long term heater, but if you are in a bind, this will do. ... show more
Reviewed in the United States on October 5, 2020 by infinitytome

  • Works great!!
Pattern Name: 50W
Awesome heater for my 5.5 gallon tank. The settings are very visible and easily adjusted. It included a sticker temperature gauge that can be attached to the outside of the tank, which read accurately within range of my digital thermometer. If you’re just trying to get into a range I think this purchase is all you need but if you’d like a more accurate reading I would get a thermometer of some sort. ... show more
Reviewed in the United States on August 10, 2019 by Jonathan

  • Never gets too hot!
Pattern Name: 100W
The media could not be loaded. I only bought this just in case the tank gets too cold. This shouldn't really happen, but even still, I could run this indefinitely and it wouldn't be too warm either! The included thermometer sticker is a great addon. No, the sticker does not go on the heater. It goes on the tank. This took me longer than I would like to admit. It's the neatest little thing too! ... show more
Reviewed in the United States on May 22, 2019 by Pandemonium

Can't find a product?

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