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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 24,096 reviews
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Availability: 20 left in stock
Fulfilled by Amazon

Arrives Friday, Nov 7
Order within 5 hours and 48 minutes
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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: #754 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 24,096 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: Friday, Nov 7

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Top Amazon Reviews


  • Very tough and warm betta bed
Pattern Name: 25W
Its a really good lil heater i bought it about 3 months ago and my betta loves sleeping on it for some reason. Also dw it wont burn your fish to a crisp bc like i said my betta likes sleeping on it instead of the plant leaves so if you have a betta with no place to sleep i suggest you put the heater as close to the surface as possible and make sure its still completely submerged like the instructions suggest and maybe your betta might like sleeping on it. Also when my idiot brother didnt take care of his betta about half the water evaporated outta the tank and he never topped it off so the heater was sticking out like a sore thumb so when i took his betta (bc hes so irresponsible) i actualy saw the heater was STILL WORKING! even tho it wasnt even in the water and it was still plugged in the wall all that time, it never even burned out or over heated. Pretty good lifespan considering it was halfway out of the water for about a month or 2 idk bc my idiot brother neglected the poor betta for who knows how long (Dw guys the betta is in safe hands and dw they arent sharing the same tank or even near each others tanks) I rate 5 stars for how long it lasted, its pretty cheap price and also that my betta thinks its very comfortable to sleep on. My betta loved it and even when i took my brothers betta i put together a new tank and let it cycle so while it did that i had to put his betta in a tupperware with that heater and i actualy caught his betta sleeping on the heater to so this is essentially a heater and a bed for bettas! ill put an image to show you my brothers previous tank with the heater in it to show you it was still working even tho it wasnt completely submerged for about a month or 2. Even if it breaks ill most likely buy another one from this seller bc of how cheap and hardy they are, it already lasted a couple months out of water so i doubt it will break anytime soon and my heater is already 4 months old and doing great so id say these are pretty good quality heater for the price they are selling for and also very comfortable for both of the bettas to sleep on bc of the plastic guard that wont cook them but rather keep them warm at night! ... show more
Reviewed in the United States on October 16, 2025 by Althea Althea

  • ⚠️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.

  • Works like a charm
Pattern Name: 25W
A little big for my 2.5 gallon betta tank, but it fits fine with two decorations a few ghost shrimp and my betta. It works great to keep the water above 70 degrees and I like that it cane with a thermometer.
Reviewed in the United States on October 15, 2025 by Koreymarquee Koreymarquee

  • 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

  • I like it
Pattern Name: 25W
Great product and works well for my 5 gallon tank
Reviewed in the United States on October 22, 2025 by MH

  • Amazing product
Pattern Name: 150W
This heater is awesome! I use the 150W Orlushy for my 30-gallon tank and it keeps the temperature super steady. Easy to adjust, the thermometer is accurate, and the suction cups hold really well. My tetras and mollies are happy and healthy. Great quality for the price — highly recommend!
Reviewed in the United States on October 8, 2025 by Brian Herrera Diaz

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