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HITOP

HITOP 50W Adjustable Aquarium Heater, Submersible Fish Tank Heater Thermostat with Suction Cups for 6-15Gal

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Availability: Only 5 left in stock, order soon!
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Arrives Monday, Oct 19
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Size: 7in-50w


Features

  • This HITOP 50W aquarium heater is designed for 615 gallon freshwater and saltwater aquariums, with a compact 7-inch body and a 5ft power cord. Please choose the right wattage aquarium heater according to our size chart.
  • Thickened glass for safety: 2mm thickened quartz glass-- 33% thicker than 1.5mm normal fish tank heaters, more resistant to cracking and corrosion, helping protect you and your fish.
  • Easy temperature control: This submersible aquarium heater has an adjustable range from 68 to 93 F. Once set, it automatically turns on or off as water temperature changes-- no extra adjustment needed.
  • Accurate Temperature Control: Built-in thermostat fish tank heater, will automatically keep the water at the set temperature within2F error. Comes with a sticker thermometer to detect water temp at any time.
  • Easy to install& Inconspicuous: Install this adjustable aquarium heater at any angle by 2 powerful suction cups. we provide 1 more extra suction cup for spare (total 3 pcs). And the understated color will not disrupt the aquarium's aesthetics.
  • Cautions: Always keep the heater fully submerged while powered on-- before any water change, unplug it first. We provide 24/7 after-sales service.

Description

About HITOP-Aquarium Mysterious and agile aquatic creatures attract human beings with their unique charm. The founder of HITOP-Aquarium was also deeply attracted. In order to make it easier for aquarium enthusiasts to maintain the fish tank, he has developed a variety of aquarium products after years of testing based on user experience. The founder of HITOP-aquarium has been deeply cultivating in the aquarium field for more than ten years, and finally founded this brand, which is committed to providing excellent products for aquarium enthusiasts. Each of our products is independently designed and developed independently, which is unique in the market. Lengthy testing and multiple inspections are a must for every product, and we do our best to provide high-quality products. Cable length: 5ft/ Comes with 3 suction cups& 1sticker thermometer（Stick it on the outside of the fish tank） 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. Note：Although we have carefully packaged it, it is made of glass, please check it carefully to see if there is any crack before using. (lf there is any problem with the heater, we provide complete after-sales service within 12 months.)

Product Dimensions: ‎7.87 x 0.98 x 0.98 inches


Item Weight: ‎8.1 ounces


Manufacturer: ‎Haisen


Item model number: ‎HP 608


Date First Available: ‎March 1, 2019


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Monday, Oct 19

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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Top Amazon Reviews

    • Looks expensive and works well
Size: 7in-50w
I’ve been using this adjustable aquarium heater for a while now, and it’s been working great. The temperature is easy to set, and it maintains a stable water temperature without constant adjustments. My fish have been much more active since installing it, which tells me the heater is doing its job well. The heater was simple to install, and the compact design doesn’t take up much space in the tank. It heats the water evenly and has been reliable so far. The only minor downside is that it takes a little time to reach the desired temperature initially, but once it does, it keeps the temperature consistent. Overall, this is a dependable and affordable aquarium heater that’s easy to use and performs exactly as expected. I would definitely recommend it to anyone looking for a reliable heater for their aquarium. ... show more
Reviewed in the United States on June 27, 2026 by Angela Felan
    • Works great
Size: 7in-50w
Got it fast and works like a charm northing too complicated keeps the fish tank at the correct temp.
Reviewed in the United States on September 14, 2026 by Shana Rudler
    • Can’t heat up tank *FIXED*
Size: 7in-50w
Update: the HITOP team reached out to me immediately after writing this review, and offered a full refund for the broken product. They then reached out again to offer a brand new heater to replace the broken one. The team has been wonderful to work with, and they go the extra mile to help customers feel satisfied. I’m sure I got a faulty heater in the original package, as it was no fault of HITOP, but I so appreciate they made things right. The new heater works phenomenal. Original: After 9 years my original tank heater for my 10 gallon kicked the bucket. As I was going to redo my tank anyways, I ordered this heater but used two 5 gallon rated heaters for the mean time. Those two were able to keep the tank at a consistent 78° while the room is usually 68-69. Unfortunately I think I got a faulty heater as the light turns red but the heater itself is never warm, and my tank is getting colder. ... show more
Reviewed in the United States on April 17, 2025 by Lucy
    • decent heater, but random annoying crackle-whir sound
Size: 7in-50w
So far so good with this heater. This is a first having a tank heather for my son's dwarf frog. I dont know what other heaters are like, but it was simple to install and instructions were clear and easy to follow. It is mostly quiet, but on occasion it has a crackle-like sound that does not seem to be associated with when it is warming up or sensing ( aka it is fairly random). That is slightly annoying to me, since its louder than the pump even, but it is not all the time and not loud enough to keep anyone awake (in a bedroom). I wish it was a little smaller for our 10 gal tank, but its really not bad. Seems to be fine and keeps water temp steady, albeit one above the level i set it to ( so maybe i misunderstood the temp setting). ... show more
Reviewed in the United States on December 31, 2025 by FitMommy5
    • Heater
Size: 7in-50w
Review Image by Alexis Boley
Easy to adjust, keeps tank at set temp, easy to use, no noise, great quality, very efficient in keeping tank warm, perfect size and fit for my aquarium
Reviewed in the United States on August 10, 2026 by Alexis Boley
    • Stable Temperature Control for Small Tanks
Size: 7in-50w
Still running! and running well. This submersible heater keeps water temperatures incredibly stable in small 6-15 gallon setups. The thermostat dial is easy to read and adjust, and the heavy-duty suction cups keep the heating element securely attached to the aquarium glass without slipping. The peace of mind is worth any additional cost. There is no odor, and even in our small aquarium, it fits great. ... show more
Reviewed in the United States on June 15, 2026 by Jo Nell
    • DO NOT BUY - FIRE HAZARD - MELTED IN MY TANK - FISH ALL GONE
Size: 7in-50w
Review Image by Malissa Atkins
Review Image by Malissa Atkins
Review Image by Malissa Atkins
Review Image by Malissa Atkins
PLEASE DO NOT BUY THIS! I just had a devastating loss in my tank because this thing decided it wanted to get hot and melt all all the plastic clips. It probably shocked my entire tank! I just did a water change on my 10 gallon tank. I always shut down my heater, filter, and air bubblers. Once the water gets high enough to cover the heater, I start everything up again. Jesus, I had just put the last gallon of water in the tank and all I could see was smoke. I thought it was my light, but it was coming out of the water because everything was melting. I switched the main power button on my surge protector. My fish started flopping and sinking to the bottom. I had a net that I was able to catch a few tetra fish that were at the top. My shrimp darted to the top of the tank, then nose dived to the bottom and turned upside down. I am so upset right now. I just lost 5 fish and a dozen shrimps. Probably will lose my assassin snails and two other tetra fish that I was able to get out of my tank. I have several pest snails that are now laying on their sides that will probably die. But those are not such a big deal. I spent nearly 6 months on this tank getting everything right. I just didn't have a heater, and opted for this one because of all the "Wonderful Reviews". Don't do it people. I am adding photos, not of my fish that were loss. ... show more
Reviewed in the United States on December 5, 2023 by Malissa Atkins
    • Great so far
Size: 7in-50w
For the few days I’ve had it it’s been wonderful. It keeps my tank at a consistent temperature! It looks great for a 10 gallon tank and it heats up very quickly. The design is very nice and it turns on and off whenever temper fluctuates just as advertised. I would definitely recommend this to others! ... show more
Reviewed in the United States on May 23, 2026 by Xiao

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