Orlushy 25W Small Submersible Aquarium Heater, Constant Temperature Betta Fish Tank Heater of 78℉for 1-6 Gallons Freshwater & Saltwater Tanks
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Availability:
Only 10 left in stock, order soon!
Arrives
Wednesday, Nov 5
Pattern Name: 25W
Features
- 25W Aquarium HeaterOrlushy 25w fish tank heater can be applicable to 1-6 gallons tank. It is 4.7 inches in length, ideal for use in low water level and wont take up mech place, easy to hide in small tank. Please fully submerged the heater vertically into water in fish tank, and horizontally into water in turtle tanks.
- Easy to Operate This aquarium heater is automatic constant temperature heating when the power is switched on. The preset temperature is 78F. Accuracy is 3F. Stair shape heating that red light is on and heater starts to intermittently heat the water to the preset temp, saving energy and electricity. When green light is on, heater stops working and maintains constantly 78F.
- Durable & Material The durable material of the heater ensures safe operation. The outer shell covering the whole body of the heater is made of heat-resistant ABS material that it wont deform and melt under high temperature. The heating rod is made of nickel-chromium heating wire to faster heating rate, and non-corrosive quartz glass.
- Cautions 1.Please ensure the heater is 100% submerged into the water before plug in the power. 2. Please unplug the power and cool down the heater for 10-20 minutes before taking it out to clean the fish tanks or change the water.
- Guaranteed Customer Service Orlushy fish tank heater is made with great safety and durability for use. We guarantee 1 -Year warranty. If there is any issue with our product, please contact us, and we would gladly offer you after-sales service.
Package Dimensions : 5.55 x 3.62 x 1.73 inches; 3.53 ounces
Item model number : CN25W
Date First Available : August 28, 2022
Manufacturer : Orlushy
Best Sellers Rank: #707 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 24,036 ratings
Item Weight: 3.52 ounces
Manufacturer: Orlushy
Item model number: CN25W
Date First Available: August 28, 2022
Item Package Dimensions L x W x H: 5.55 x 3.62 x 1.73 inches
Brand Name: Orlushy
Target Audience Keyword: fish
Size: 25W
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Wednesday, Nov 5
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.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Similar Products
Top Amazon Reviews
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!
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Reviewed in the United States on August 4, 2025 by Delilah B. Delilah B.
Pattern Name: 25W
I have it in a 5 Gallon aquarium. It holds the temp around 78 degrees even though its in a pretty cold room. Very easy to set up and the chord is pretty long too.
Reviewed in the United States on September 5, 2025 by B.Kent B.Kent
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
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.
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Reviewed in the United States on February 15, 2025 by Leon Office Leon Office
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
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!
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Reviewed in the United States on November 3, 2024 by Derrik Derrik
Pattern Name: 500W
Works great! Makes the take not look so great but does its job. The little thermometer doesn’t come with instructions so it was a guessing game. But it was not to hard to figure out. Put the little black prong in the tank and the digital thermometer on the outside side on the tank! Not quite sure how accurate it is yet but I’ll see in a few days
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Reviewed in the United States on September 6, 2025 by Lisa Montes