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Item #:
41745393
FREESEA Aquarium Fish Tank Heater: 25W Small Betta Turtle Heating | Submersible Aquarium Heater with Preset 78F Temperature for 1-5 Gallon Betta
90% of respondents would recommend this to a friend
Item #:
41745393
TZS 50498
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What Stands Out
Versatile Power Options
Available in 25W, 50W, 100W, and 300W, catering to various tank sizes from 1 to 5 gallons, suitable for both freshwater and saltwater fish.
Preset Temperature Control
Designed with preset temperature settings, ensuring optimal heating without manual adjustments for comfortable aquatic environments, ideal for Betta and turtles.
Compact Design
Small submersible design easily fits into tight spaces while ensuring efficient heating, making it a practical choice for home aquariums.
Product Details
| Item Weight | 3.84 ounces (108.86 grams) |
| Manufacturer | FREESEA |
| Item model number | Aquarium Heater |
| Date First Available | August 15, 2023 |
| Item Package Dimensions L x W x H | 5.47 x 3.07 x 1.85 inches (13.9 x 7.8 x 4.7 cm) |
| Item Dimensions LxWxH | 5.3 x 2.9 x 1.8 inches (13.5 x 7.4 x 4.6 cm) |
| Brand Name | FREESEA |
| Target Audience Keyword | fish |
| Color | Black |
| Size | NEW-25W |
Who Should Buy?
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Small Aquarium Owners
Ideal for users with small tanks needing precise temperature control for tropical fish or turtles.
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Betta Fish Enthusiasts
Specifically designed for maintaining optimal warmth and comfort for bettas in tanks from 1 to 5 gallons.
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Beginner Aquarists
Perfect for new aquarium owners seeking a simple, reliable heater with preset temperature settings for easy use.
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Large Tank Owners
Not suitable for large tanks, as its wattage options are limited to smaller setups from 1 to 5 gallons.
Product Description
FREESEA Aquarium Fish Tank Heater: 25W Small Betta Turtle Heating | Submersible Aquarium Heater with Preset 78F Temperature for 1-5 Gallon Betta Turtle Freshwater Saltwater Tank
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Customer Questions & Answers
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Question:
What is the ideal tank size for the FREESEA 300 Watt Aquarium Fish Tank Heater?
Answer: The FREESEA 300 Watt Aquarium Fish Tank Heater is best suited for tanks up to 100 gallons. Its powerful heating element ensures that even larger volumes of water maintain a consistent temperature. This makes it an excellent choice for both freshwater and marine setups, where stable water conditions are crucial. For example, if you're maintaining a large community tank or a reef aquarium, this heater can effectively deliver the necessary warmth to keep your aquatic life healthy. -
Question:
How does the submersible thermometer work with this heater?
Answer: The submersible thermometer included with the FREESEA 300 Watt heater allows for accurate and real-time temperature monitoring. It should be placed in the tank where it can give you precise readings of the water temperature. The thermometer features a clear display, allowing you to quickly assess if the heater is adequately raising the tank's temperature. This ensures that you can respond instantly if temperature fluctuations occur, which is vital for the health of delicate species in your aquarium. -
Question:
Is this heater suitable for both freshwater and saltwater aquariums?
Answer: Yes, the FREESEA 300 Watt Aquarium Fish Tank Heater is designed to be versatile, making it suitable for both freshwater and saltwater aquariums. Its robust construction and efficient heating mechanism ensure that it works effectively in various aquatic environments. This means whether you are planning to maintain a tropical freshwater setup or a marine ecosystem, this heater can provide the reliability you need for consistent water temperatures. -
Question:
Can the heater be used in a sump system?
Answer: The FREESEA 300 Watt Aquarium Fish Tank Heater can be used in sump systems, as it is designed to be fully submersible. When installing in a sump, ensure it is placed where water flow is optimal for even heat distribution. This usage is advantageous for larger aquariums, ensuring that your tank maintains a consistent temperature through a dedicated sump filtration system. Proper positioning will enhance both heating efficiency and system performance. -
Question:
Does this heater have an automatic shut-off feature?
Answer: While the FREESEA 300 Watt Aquarium Fish Tank Heater does not specifically advertise an automatic shut-off feature, it is important to monitor the temperature regularly using the included thermometer. Some users consider pairing it with a separate thermostat for added safety, which can help prevent overheating and maintain consistent temperature levels. For active aquarists, this setup provides peace of mind, ensuring that the aquatic environment remains stable and safe for your fish. -
Question:
What are the safety features of this heater?
Answer: The FREESEA 300 Watt Aquarium Fish Tank Heater is designed with safety in mind, incorporating a shatterproof casing to withstand the rigors of aquarium life. Additionally, it is equipped with overheat protection to prevent damage to the heater. This ensures a longer lifespan and reliable performance. Whether you’re cultivating delicate fish or maintaining vibrant corals, these safety features give you confidence that your aquatic ecosystem is in good hands. -
Question:
What temperature range can the heater maintain?
Answer: The FREESEA 300 Watt Aquarium Fish Tank Heater can typically maintain a temperature range between 68°F to 94°F (20°C to 34°C). This flexibility allows users to cater the temperature settings according to the specific needs of their aquatic inhabitants. For instance, tropical fish often thrive within this range, ensuring a comfortable environment for species that require warm water. This adaptability makes this heater an excellent choice for diverse aquarium setups. -
Question:
Is it difficult to install the FREESEA heater?
Answer: Installing the FREESEA 300 Watt Aquarium Fish Tank Heater is straightforward and does not require extensive knowledge. Simply submerge the heater vertically in the tank, near the water flow for better circulation. Additionally, use the provided mounting brackets to secure it in place. This design makes it ideal for beginners setting up their first aquarium, as well as experienced aquarists looking for efficient and effective temperature control. -
Question:
How do I maintain the FREESEA heater?
Answer: Maintaining the FREESEA 300 Watt Aquarium Fish Tank Heater is relatively simple. Regularly check the thermometer to ensure that the heater is functioning correctly, and clean the unit periodically to prevent mineral buildup. This can be done by gently rinsing it with vinegar to remove deposits, making sure to unplug it first. Consistent maintenance will enhance its performance and longevity, ensuring your aquarium remains a healthy environment for your aquatic life. -
Question:
Where can I buy the FREESEA 300 Watt Aquarium Fish Tank Heater?
Answer: You can purchase the FREESEA 300 Watt Aquarium Fish Tank Heater with Aquarium Submersible Thermometer from Ubuy in Tanzania. They offer a variety of products with user-friendly online shopping experiences tailored to local needs. Ubuy is known for providing fast access to a wide range of aquarium supplies, making it a go-to platform for aquarists looking to set up or upgrade their tanks.
FREESEA Aquarium Heaters Aquarium Heater Editorial Review
The FREESEA 2550100200300 Watt Aquarium Heater is a mixed bag when it comes to customer experience. Some users have found it to be effective and reliable, while others have had issues with temperature control and accuracy. The heater is praised for its performance in an outdoor turtle tank during cold weather. However, there are concerns about the fluctuation of temperature readings and the fading of numbers on the dial. Some users have reported cases of the heater malfunctioning and causing harm to fish. There have also been complaints about poor customer service. Overall, it seems that the FREESEA Aquarium Heater may work well for some, but there are potential risks and drawbacks to consider.
Customer Reviews & Ratings
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Pros
- Works well for outdoor turtle tanks in cold weather
- Can reach high temperatures
- Fast heating
Cons
- Temperature control and accuracy issues
Platform Trust & Buyer Confidence
JG
Jazz
Verified buyer
“Easy to use and always helpful and sorts any issues I've had past and present”
1 September 2026 · via Trustpilot
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“Fast, convenient and cheap. Great store!”
27 August 2026 · via Trustpilot
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TZS 50498
Order now and get it around Saturday, September 19
This item is not restrict in my country.(Please click on above link if this item is not restrict in your country, So our team will review and allow.)
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Features & Benefits
- 100 Watt heater suitable for 15 to 25 gallons aquariums
- Temperature range of 63°F~95°F
- Comes with a free diving thermometer
- Automatic safety shut-off and overheating protection
- Explosion proof and suitable for both fresh water and salt water aquariums
- Thickened quartz glass for durability and easy hiding in the tank
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