





From the brand


FREESEA is a brand that specializes in aquatic products, aiming to provide high-quality products for fish farming enthusiasts.
At FREESEA, we believe that fishkeeping is not just a hobby, but a way of life. Our team of experts are passionate about aquatic life and are committed to providing customers with the best products and advice to help them achieve success in their fishkeeping journey.
Freesea Submersible Water Pump
Aquarium Heater and Fish Tank
How did we get our start?
The FREESEA team was started in 2005. We have been in the field of aquarium for more than ten years with the most professional team and first-class after-sales service.
What makes our products unique?
We have our own R&D team and factory. Each product is independently developed and designed by our team, and has applied for a patent, which is unique in the market.
What problem are we solving?
FREESEA products are rigorously tested and used for a long time before being available in bulk. We focus on providing quality products and services.
Product Dimensions : 5.3 x 2.9 x 1.8 inches; 3.84 ounces
Item model number : Aquarium Heater
Date First Available : August 15, 2023
Manufacturer : FREESEA
ASIN : B0CFQDPQ8Q
Best Sellers Rank: #28,819 in Pet Supplies (See Top 100 in Pet Supplies) #59 in Aquarium Heaters
Customer Reviews: 4.1 4.1 out of 5 stars (402) var dpAcrHasRegisteredArcLinkClickAction; P.when(‘A’, ‘ready’).execute(function(A) { if (dpAcrHasRegisteredArcLinkClickAction !== true) { dpAcrHasRegisteredArcLinkClickAction = true; A.declarative( ‘acrLink-click-metrics’, ‘click’, { “allowLinkDefault”: true }, function (event) { if (window.ue) { ue.count(“acrLinkClickCount”, (ue.count(“acrLinkClickCount”) || 0) + 1); } } ); } }); P.when(‘A’, ‘cf’).execute(function(A) { A.declarative(‘acrStarsLink-click-metrics’, ‘click’, { “allowLinkDefault” : true }, function(event){ if(window.ue) { ue.count(“acrStarsLinkWithPopoverClickCount”, (ue.count(“acrStarsLinkWithPopoverClickCount”) || 0) + 1); } }); });
FREESEA Aquarium Heater: 25w betta fish heater, voltage: 110~120V, is suitable for use in 1-5 gal betta fish turtle tanks and aquariums and easy to hide in small tank. The power cord is 3.9ft, long enough for indoor use
Safe And Durable: The betta heater uses a rubber sealing layer, which ensures that it has better sealing and safety performance, and will never leak electricity or water. With quartz glass, it is more sturdy and durable
Auto Constant Temperature: When the water temperature is lower than 78℉, the turtle tank heater starts to heat and the red light is on. When the temperature reaches 78℉, the heater stops heating and the green light is on
Cautions: Please ensure the betta tank heater is 100% submerged into the water before plug in the power. Please unplug the power and cool down the heater for 10-20 minutes before taking it out
Excellent service: We promise to provide high quality products and better service, if you have any questions about the turtle heater received, please contact us
12 reviews for FREESEA Aquarium Fish Tank Heater: 25W/50W/100W/300W Small Submersible Aquarium Heater with Preset Temperature for 1-5 Gallon Betta Turtle Freshwater Saltwater Tank
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$9.99
TxKat –
Small aquarium heater
Works well + easy to install. Takes up just a small portion on the tank.
JP –
Amazing Heater!!! 10/10 For the Money
Amazing heater! I bought this for my 3 gal tank and it was great. Packaging was fairly simple, however the heater is nice, so I guess I don’t really care. The thermometer it comes in is good, but I don’t need one as I already have one in my tank. The quartz glass is very high quality (and not heavy, either!), and it accurately heats my water temp to 78F. Whenever it senses that the water is too cold, it hops on heating right away! The size is fairly compact so it is not easily noticeable and the suction cups are very strong as well. The LEDS are very bright so that you can see directly whether or not it is heating. Overall, it is super easy to use as it is just plug and play. High recommend, 10/10!
Madhulika –
No
I purchased this fish tank heater in November, and by January it completely stopped working. Thankfully, I was able to get a replacement, but the short lifespan is very disappointing.What surprised me most was the heavy calcification buildup on the heater, even though we use filtered water and maintain a clean tank for our betta fish. I did not expect this issue in such a short time.Due to the reliability concerns, I would not recommend this heater to others.
Von J. –
Perfect Temp
Works as it should. Keep tank right at 77.8 degrees F. This is also a 5 gallon tank
Tabby –
Keeps my Betta happy
This heater is the perfect size for a 5 gallon tank, and there’s no complex settings so it’s easy to set up and use. It’s well built so it’s not likely to malfunction.The one thing I don’t like is how the suction cup warped so it doesn’t stick to the side of the tank like it’s supposed to anymore.But other than that it’s a good heater.
agriplex –
To small for 3 gal beta tank
To small for my 3 gal. tank. It does not keep the Beta water warm enough. No way to adjust
Brandon –
Would buy again
Keeps the temperature, it’s worth the money, it’s durability is well 1 year later. Super easy to use and it’s light weight.
Melyssa Lopez –
Good
I like the style and model I wish it warmed up more. My water doesn’t feel warm. I have it in a 5 gal tank and the water is still cold. So either it’s not working correctly or I need a hotter wattage heater. My house stay cold summer and winter.
Dragan Gasparovic –
it is very good for small tank. Good price. My recommendations
Lawrence Welsh –
It is awesome
Chris –
The reviews of bad temperature control is real. I’m so glad I hadn’t added fish to my tank yet. Temperature was at 90°f and rising. Poor product. Side note, suction cups don’t hold.
A –
Works okay. Did not produce the temperature that I would have thought it was capable of. Great for smaller than 5gal tank.