10 Best
Nano Tank Heaters
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Product Highlights- 【usb powered tank heater】this heater is powered by a 5v/2a usb power supply, which is very safe. no need to worry about the fish getting electrocuted. please use a 5v/2a power adapter (not included) or a 5v/2a power bank (not included) to power the heater.
- 【overheating protection and power-off memory function】when the water temperature exceeds the maximum temperature range, the fish tank heater will stop working. the heater will remember the temperature setting, and in the event of a power outage, when the power is restored, the heater will follow the last setting.
- 【mini aquarium heater】this small aquarium heater is only 5cm (1.97 inches) in length, takes up less space, and is easy to hide in the fish tank. the temperature range of the american fahrenheit model is 64~93°f, and the temperature range of the english celsius model is 18~34°c. please purchase according to your needs.
- 【precise temperature display】using smart inverter technology, this thermostat maintains the heater at a constant temperature through a built-in chip, which is more precise than the knob control of the heater, and the display is easy to read the temperature.
- 【widely used】this fish tank heater is very suitable for small fish tanks of 1~5l. can be used in fresh and seawater, and it can be used not only as an aquarium heater but also for turtles, pet fountains, and plant seedlings.
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Product Highlights
- Precise and constant temperature: no need to set, datoo fish tank heater will automatically keep the water temperature of the fish habitat at 78℉. this temperature is very suitable for betta and most tropical fish. when the water temperature is lower than 78℉, the heater starts to heat and the red light is on. when the temperature reaches 78℉, the heater stops heating a...
- Safe and durable: unlike traditional plastic seals, datoo uses a rubber sealing layer, which ensures that datoo has better sealing and safety performance, and will never leak electricity or water. quartz glass material, explosion-proof and crack-proof, more sturdy and durable, without worrying about damage.
- 25w betta aquarium heater: creating and maintaining a perfect and comfortable water temperature for our cute fish is not easy, which requires a lot of effort. now datoo mini 25w aquarium heater can help you make this easier. precise and constant temperature, no need to set, keep the temperature of fish habitat in the best state at all times. you will find it very easy a...
- The smallest 25w betta heater: for most fish lovers who have small fish tanks of 1 to 5 gallons, a small heater means more space for fish. this is the smallest 25w aquarium heater on the market, only 0.2 inches. no matter how small your fish tank is, it can be used perfectly in it, and you can't even find it. very mini!!
- One year warranty & satisfaction guarantee: this heater is ideal for 1 to 6 gallon small glass or acrylic desktop aquariums. when in use, it needs to be submerged 100% in water. we provide one year warranty and 24 hours professional customer service. buy with confidence!
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Product Highlights
- 【aquarium heater】: intelligent constant temperature heating rod aquarium fish tank heater. the temperature can be adjusted from 18 degree to 34 degree.
- 【adjustable】: external knob type temperature control, convenient adjust the required temperature.
- 【safety material】: tank heater made of abs pp, not easy to damage, waterproof, and durable to use. mini design is suitable for 3l aquariums.
- 【feature】: high heating speed, waterproof and full submersible design, heat resistant.
- 【application】: suitable for tanks for fish, aquariums, turtle tanks, horned frogs, pet drinking water, etc.
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Product Highlights
- Easy temperature adjustment: with a user-friendly knob, you can easily adjust the temperature according to your specific requirements, providing precise control over your aquarium's environment.
- Dual temperature reading: our heater features dual temperature reading options, allowing you to monitor the water temperature both in celsius and fahrenheit for added convenience.
- Overheat protection: our aquarium heater includes built-in overheat protection, ensuring the safety of your fish and preventing any potential hazards.
- Explosion-proof quartz glass: crafted with high-quality and explosion-proof quartz glass, our heater offers durability and safety, ensuring reliable performance over time.
- Peace of mind: with its advanced features and reliable performance, our aquarium heater provides peace of mind, ensuring the optimal environment for your aquatic pets.
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- Intelligent memory function: after setting the target temperature, the power is suddenly turned off, and the target temperature remains unchanged after turning on the power again.
- External controller: external temperature controller, no need to get your hands wet, no need to buy other controllers, 52 inch long power cord, easy to install, easy to control.
- Small and powerful: this mini aquarium heater is about 2.36 "long, and is super small. it is specially designed for small fish tanks and does not occupy any space. upgrade the chip to make the temperature sensing more sensitive and the temperature rise more accurate.
- Overheating protection: built-in temperature sensor, temperature range 64-93°f. if the water temperature exceeds 95°f, the error code "hi" appears, the heater stops working, and when it returns to below 95°f, the error code disappears and it starts working again.
- Widely used: suitable for freshwater and saltwater. meet the growth temperature for turtle, fighting fish,guppy, goldfish, neon tetra, gourami, peaceful betta, pterophyllum, dwarf gourami, pterophyllum scalare, betta smaragdina, koi, corydoras, anabantoidei, paradise fish, clownfish,swordtail...
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Product Highlights
- [overheat protection]: if the aquarium heater overheating, the power will automatically cut off and stop heating, thus protecting your fish. suitable for fresh water tanks and sea water fish tanks, turtle tanks, coral reef aquariums, plant aquariums, etc.
- [thickened quartz explosion-proof glass]: the aquarium heater rapid heat transfer, anti-corrosion, power-off memory function, automatic setting when power on, no need to reset the temperature.
- [mini 10w aquarium heater]: innovative super mini size that takes up less space and is easy to hide, perfect for nanotanks / betta tanks with a temperature range of 64℉ to 93℉ for 1-5 gallon tanks.
- [built-in thermometer]: our aquarium heater built-in temperature sensors, the water temperature will be displayed in real time on an external temperature controller with an accuracy of up to 0.5℃ or 1℉. the operating frequency of the heater will change according to the temperature change, and the heater will automatically stop heating when it reaches the set temperature.
- [package include]: package include 1x usb aquarium heater, 1x suction cup, 1x instructions, the manual contains very detailed instructions and precautions for use.
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Product Highlights
- Adjustable temperature: wide temperature range: 59 °f to 94 °f (15-34 °c). slight deviations: ±2 °f. just press the "+" or "-" button on the controller to freely set your desired water temperatures.
- Overheating protection: the fish tank heater automatically shuts off when it operates at an abnormally high temperature. prevent excessive water temperature timely to keep your aquatic lives healthy.
- Fully submerged: the heater should be completely immersed in water during use. it is applicable for fresh, marine and tropical aquariums up to 10 gallons. (note: put it where there’s good water circulations. do not bury it under the sand or gravels!)
- Detect temp timely: with a built-in thermostat, the aquarium heater starts working when the water temperature is below the set one and the indicator light turns red. it stops heating automatically when reaching the set temp and the light turns green.
- Shatterproof & safe: made of 2 mm extra thick quartz glass, the aquarium heating rod can effectively prevent electric leakage. it comes with a heavy-duty isolation cover which always keeps the fish out. no risk of scalding fish.
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Product Highlights
- The ht10 uses a built in electronic theromstat to automatically maintain water at 78° f which is ideal for most tropical fish. no adjustment is requried.
- The ht heater is fully submersbile and can be installed vertically or horizontally. it's small footprint makes it easy to conceal behind plants or other décor.
- All tetra ht heaters have indicator lights to let you know when the heater is on. it will be red when heating and green when the proper temperature has been reached.
- Ideal for aquariums between 2 to 10 gallons with hoods or glass canopies
- Please read all label information upon delivery. do not plug heater into an electrical outlet until it is placed inside the aquarium.
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Product Highlights
- Allows for versatile placement in small aquariums such as our pisces all-in-one aquariums
- When the target temperature of the heater has been achieved, the unit will shut down and stop heating the water
- Features a built-in electronic thermostat preset to 78˚ f
- Precise temperature-controlled accuracy of ±1.8˚ f
- Constructed from a heat-resistant quartz material
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Product Highlights
- At-a-glance temperature display -- heater rod shows real time water temperature and indicator light. it will be red when heating, green light when the proper temperature has been reached.
- Out of water shut off protection -- feature to ensure it doesn’t overheat and cause harm to your livestock. turn off before it exceeds desired temperature. shatterproof plastic guard protects fish/turtle from impact and making contact, easy to detach to cleaning
- Safe rugged construction -- built in shatterproof quartz tube wrapped with two heating element mica plate and nickel wire, along with high-impact plastic housing, hygger submersible aquarium heater ensures the safety of your pets while maintaining proper temperature.
- External knob controller memory function -- allows you quick set temperature without getting hands wet especially in winter, adjustable wide temperature range of 59°f to 93°f in 1-degree increments. memories last setting when you unplug it to water change.
- Great for small, shallow tank -- slim flat profile mini tank heater measures 4.3''x 1.8''x 0.9'', which is quiet space saving and easy to hide behind filter/wood/rock with two strong suction cups mount. thanks to the flat design, it can be placed vertically or horizontally at gravel free aquarium bottom to heat up low water level turtle tank.
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