Search  for anything...

Orlushy Submersible Aquarium Heater,500W Fish Tahk Heater with Adjust Knob Thermostat 2 Suction Cups and Free Thermometer Suitable for Marine Saltwater and Freshwater (500W)

  • Based on 23,866 reviews
Condition: New
Checking for the best price...
$23.99 Why this price?
Labor Day Deal · 27% off was $32.99

Buy Now, Pay Later


As low as $5 / 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

FREE 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: 20 left in stock
Fulfilled by Amazon

Arrives Tuesday, Sep 2
Order within 4 hours and 2 minutes
Available payment plans shown during checkout

Pattern Name: 500W


Features

  • Adjustable Aquarium Fish Tank Water Heater Sensitive and reliable thermostat maintains uniform temperature. Automatic shut off when the temperature is reached
  • 500W aquarium heater is suitable for 40 to 75 gallons aquariums,voltage 110-120V, power cord is 6ft, please choose the right wattage aquarium heater according to our size chart.
  • Explosion Proof: 2mm thickened quartz glass,can be used in fresh water and salt water aquariums,easy to hide in the tank.
  • Precise temperature dial from 68 to 89F allows for complete control of aquatic climate within a 1-degree difference.

Is Discontinued By Manufacturer ‏ : ‎ No


Package Dimensions ‏ : ‎ 14.41 x 3.7 x 2.24 inches; 1.12 Pounds


Item model number ‏ : ‎ jsmuwkwkP1218


Date First Available ‏ : ‎ September 3, 2018


Manufacturer ‏ : ‎ nova


Best Sellers Rank: #1,416 in Pet Supplies (See Top 100 in Pet Supplies) #1 in Aquarium Heaters


#1 in Aquarium Heaters:


Customer Reviews: 4.3 4.3 out of 5 stars 23,866 ratings


Item Weight: 1.12 pounds


Manufacturer: nova


Item model number: jsmuwkwkP1218


Date First Available: September 3, 2018


Item Package Dimensions L x W x H: 14.41 x 3.7 x 2.24 inches


Brand Name: Orlushy


Target Audience Keyword: Fish, fish


Size: 500W


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Tuesday, Sep 2

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


  • ⚠️Warning this Will not blow up⚠️ great heater highly recommend read review.
Pattern Name: 300W
It’s been seven months since I’ve bought this heater it’s had been keeping the temperature pretty good and it even tho it does hover at 72-73.5 degrees Fahrenheit I have this way because my dojo pond loach’s have to have water below 80 degrees Fahrenheit or they will experience fungal infections and ich infections there a cold water fish used to cooler temperatures somewhat similar to gold fish which are actually a cold water fish and I have a albino mini pleco algae eater some people would call it measuring in at 5 inches last time I checked and the pleco’s like temperatures in the early 70’s and early 80’s 72-82 degrees Fahrenheit is a lil bit warmer but not too much so 72 is the appropriate temperature and the Cory’s like warmer temperatures as well hovering in at early 70’s to the early 80’s 72-82 degrees Fahrenheit so to keep everyone happy or at least satisfied I keep it at 72 degrees Fahrenheit and even this it does go up a few degrees that’s fine as long as it doesn’t go below past 79 degrees Fahrenheit that fine but let’s get into the heart of the subject:how long will this cheap heater last?🤔 well for the last seven months it’s held up pretty well so I’ll eyeball it five eight years approximately not sure like I said “eyeballing” it.subject2safety well it’s hasn’t made my tank become a boiling pot of loach food so that’s a plus and it hasn’t burnt up,melted, exploded,glass or heater either or shattered,hasn’t,stopped working,cord or heater electrocuted the fish and hasn’t busted the tank which is 35 gallon bowfront aquarium to pieces like a ticking time bomb and thickness of this cheap heater well it seems to be the last time I put it in and also had felt it which I touched it because I was trying to see if it was working yes it is still working and I have three thermometers on the tank one inside of the tank and reads the temperature outside the tank it’s the one that it comes with and this is not gonna blow up in my hands or fish tank question NO it’s not gonna be so cheap that’s it’s gonna be like a cracker this if you ask me is 4th or 5th in the top five list of best heaters on the aquariumist market 1st being eheim 2nd fluval 3rd being probably United because I searched it up and so….any way fourth being I guess yes orlushy brand and fifth I guess because my mother’s tetra fish heater didn’t stop working or melt I’ll put Tetra in at 5th place because well that’s what I’ve SOMEWHAT have experience on anyway great heater highly recommended and will be buying another one of this or another variant if this brand this brand has really surprised me yet….but for now yes great heater Godbless! ... show more
Reviewed in the United States on August 4, 2025 by Delilah B. Delilah B.

  • Nice heater, comes with thermometer too
Pattern Name: 150W
Works great so far, have had it for about a week and it accurately stays at the temp I set, love that it comes with a thermometer as well!
Reviewed in the United States on August 24, 2025 by Sage Eliz Sage Eliz

  • Great item
Pattern Name: 25W
Great heater for my size tank 2.5g. I just have my little for my desk and this heater works great. Great for the price and the betta "Mort" loves it. The shrimp even started to move around a bit more.
Reviewed in the United States on June 25, 2025 by lance lance

  • Fixed Temperature Control
Pattern Name: 100W
I purchased this heater as a replacement since my last heater finally gave out. The heater itself does its job, it heats the water to temp and keeps it somewhat to where it’s set. It was a great addition having the temp probe and digital readout. I have tested it against another heater’s internal control and mercury thermometer and it seems to be mostly accurate. My only issue, and reason for giving this thermometer a four star review, is because the temperature dial on the top of the heater, are the ONLY temperatures you may choose to heat your aquarium. It is not variable, or adjustable. I found if I set the heater to 75, the tank would sit around 72, and if set to 79, it will stay at 79. The seven degree swing seemed rather large IMO. Like I said, the temp is not variable, and if the selector on the heater is not lined up with a number, the heater will not turn on at all or heat the aquarium. All in all it does its job, but if you want variability when selecting a temperature, spend a little extra money and buy a heater with that option. ... show more
Reviewed in the United States on February 15, 2025 by Leon Office Leon Office

  • 500W big enough for 55 gallon
Pattern Name: 500W
I originally bought a 300W aquarium heater for my 55 gallon aquarium. (A different brand) It said it was good from 40-55 gallons. I installed it and "maxed it out" at 89 degrees, but my aquarium would only get to 66.5 degrees on the other side of the aquarium opposite the heater. This was simply too chilly for my fishies. (I have a freshwater tropical set up with mostly Tetras) I sized up to the Orlushy 500w which was substantially larger in size compared to the 300W heater and I now have no problem heating my aquarium into the 80's if need be. I believe this one advertises that it will heat from 50-80 gallon. Learn from my mistake and go with the 500W heater if you have a 55 gallon or larger to get proper heating. Orlushy was the only one (I saw) that provided the larger sized 500W heater. Price was great and product looks good in the aquarium. I don't think my fish would have made it through the cold winter with out it. Because of the ridiculous cost of (even freshwater tropical fish) now a days... you don't want to chance them all dying for something that doesn't cost that much! In my opinion. Hope this helps! ... show more
Reviewed in the United States on November 3, 2024 by Derrik Derrik

  • Great little heater
Pattern Name: 25W
Had to get a heater asap when i noticed my betta was suffering from bloat because his water was too cold. This heater is great! Doesnt over heat and comes with a temperture sticker. Its small and fits perfect in smaller tanks. Makes 0 noise of course. Has been working for a few months for me with no issues. Easy to put in the tank. I have a 3.7 gal tank and it hehats up nicely and evenly. ... show more
Reviewed in the United States on July 26, 2025 by Jezii S

  • comes in great packaging,
Pattern Name: 300W
best price for and works great
Reviewed in the United States on August 16, 2025 by Michael Johnson

Can't find a product?

Find it on Amazon first, then paste the link below.
Checking for best price...