Search  for anything...

25W Small Aquarium Heater, 5PCS Small Fish Tank Heater for Preset Temperature 78℉, Mini Water Heater for Fish Tank

  • Based on 22 reviews
Condition: New
Checking for product changes

Buy Now, Pay Later


As low as $8 / 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

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: 16 left in stock
Fulfilled by Amazon

Arrives Friday, May 23
Order within 11 hours and 28 minutes
Available payment plans shown during checkout

Number of Items: 5


Features

  • MaterialThe fish heater is made from high-quality quartz glass material, and this mini aquarium heater is explosion-proof and crack-proof, ensuring its durability and longevity.
  • Mini DesignThis mini heater is compact and space-saving, perfect for small aquarium, save more space for fish to move around. Ideal for tanks ranging from 1 to 5 gallons.
  • Best Sealing & SafetyBetter sealing and safety performance ensure that this mini fish tank heater never leaks electricity or water, providing a secure environment for your fish.
  • Precise And Constant TemperatureWith a power output of 25W, these small heater provides precise and constant temperature control at 78F, creating an optimal environment for your fish.
  • Range of ApplicationThis fish tank water heater is suitable for aquaculture, freshwater, saltwater and tropical aquariums.

Package Dimensions ‏ : ‎ 11.77 x 5.28 x 2.91 inches; 1.43 Pounds


Item model number ‏ : ‎ JRB-25W


Date First Available ‏ : ‎ June 2, 2024


Manufacturer ‏ : ‎ pamaner


Country of Origin ‏ : ‎ China


Best Sellers Rank: #190,012 in Pet Supplies (See Top 100 in Pet Supplies) #425 in Aquarium Heaters


#425 in Aquarium Heaters:


Customer Reviews: 4.0 4.0 out of 5 stars 22 ratings


Item Weight: 1.43 pounds


Manufacturer: pamaner


Country of Origin: China


Item model number: JRB-25W


Date First Available: June 2, 2024


Item Package Dimensions L x W x H: 11.77 x 5.28 x 2.91 inches


Brand Name: pamaner


Target Audience Keyword: Fish, Betta,Tetra, Turtle


Directions: ALL PEOPLE


Model Name: JRB-25W


Color: BLACK


Age Range Description: All Life Stages


Number of Items: 5


Included Components: Aquarium Heater


Specific Uses for Product: Indoor


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Friday, May 23

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


  • Perfect for small tanks
Keeps my 3 gallon tank at the correct temperature and has a easily identifiable indicator light
Reviewed in the United States on September 10, 2024 by JulieC

  • Oh yeah this thing is small very small but it work 25watts it is
Close to 25watts, not fully 25watts on my killawatts meter. It is small, and I mean small, the smallest aquarium heater I've have, but it work. Make sure you have the proper size tank for this, not too small, not too big, whatever the spec say, comply with it. For my purpose I use it for my 10 gallons aquarium and it work fine, very small, compare to my previous heater which no longer work, the orange light no longer lid up, I'm guessing it's dead, so I bought this one. How long will this last? longevity is the question, and I wish I could answer this, but only time will tell. My recommendation for proper installation if the direction didn't say so, put this in your aquarium for at least 15 minutes before turning it on, definitely do not turn this on when the heater is not submerge in water. ... show more
Reviewed in the United States on August 10, 2024 by VN United

  • Great heater for nano tank
I've been using this 25W heater with a 5 gallon planted tank and so far it works great. I'd never used a fixed temperature device so didn't know quite what to expect. The quality of the heater and packaging is good, equivalent to others I've purchased in the past. I took care to put the suction cup clamp over the top (rubberized) section of the heater as instructed. The cup stuck to clean aquarium glass with no wobbling. During testing this has kept the aquarium water within 1-2 degrees of 78F. I've got good filter and flow in the tank and I think this has helped the temperature stay pretty constant. I'd definitely recommend this heater for a planted or medium-to-high flow nano tank. ... show more
Reviewed in the United States on August 15, 2024 by Mel

  • NOT SAFE! Cooked Everything In My Tank :((
Never ever I have had an aquarium heater that overheated the tank to the level everything inside got cooked alive. I thought that this heater would be perfect of my nano tank where I had a baby Beta fish, couple of snails and lots of freshwater plants. Everything was working very well until today morning when I logged in to work after feeding my beta fish. After sometime I noticed that the beta is not near the air stone where she is normally seen chasing the bubbles playfully. When I lifted the tank lid to peek in, I could feel that the lid was too warm to touch. Even though I disconnected everything and attempted to rescue the fish and snails, it was too late. I feel terrible for subjecting these poor creatures to such a cruel death. ... show more
Reviewed in the United States on August 16, 2024 by Mirchi Tunes Mirchi Tunes

  • good heater, compact and does the job
It's not too conspicuous, while keeping the tank at the right temp.
Reviewed in the United States on September 8, 2024 by Arisaka38

  • Good for my betta
Works fine. Does what it's supposed to do.
Reviewed in the United States on September 1, 2024 by Testingtesting123

  • works fantastic
i have this in my 5g shrimp aquarium and its so compact and tiny, it works great it maintains a 79f temp through any temp changes in my apartment, it brings it back upto temp very quickly when it does drop and doesnt take along time to do so,
Reviewed in the United States on August 31, 2024 by Alastorr

  • I was expecting something stronger
I received a small heater for my 10-gallon tank and decided to test it after reading some reviews. Unfortunately, the product arrived completely broken, most likely due to inadequate packaging. The box did not contain any foam or molding to protect the item from impact, and the box itself was flimsy. Additionally, it was shipped in a flimsy bag. It's disappointing that the manufacturer didn't take proper precautions, especially for such a fragile product. ... show more
Reviewed in the United States on August 11, 2024 by One One

Can't find a product?

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