USB Mini Aquarium Heater for Small Tanks — 26°C USB-Powered Immersion Heater
Compact and reliable, this USB Mini Aquarium Heater is designed for small fish tanks and pet water dispensers, delivering a steady 26°C with USB-powered flexibility. Its small footprint and straightforward indicators help you keep delicate aquatic life comfortable without bulky equipment.
- Power & Connectivity: USB-powered with a 5V 2A input; plug into any USB charger or power bank for flexible heating, ideal for desks, laptops, or portable setups.
- Stable Temperature: Maintains a constant 26°C with automatic high-temperature protection; red indicator light during heating and green when the target temperature is reached (no digital display).
- Compact Submersible Design: 52 mm heating rod built into a small main body (8.5 × 1.8 cm); crafted from quartz-safe material for reliable, safe submersion.
- Water Level & Tank Compatibility: Works with water levels as low as 2 cm; suitable for about 2.5 L tanks, and usable in both freshwater and seawater environments.
- Scalability with Multiple Rods: For higher heating capacity, two heating rods can be used in one tank (e.g., a 4 L setup). If a single charger/power pack has multiple USB ports, only one heater should be active at a time to avoid heating inefficiency.
- Notes on Use: Requires a 5V 2A charger for proper operation; insufficient current will prevent heating from engaging. This device is a small, safe option for tiny habitats and pet water feeders.
Benefits: This USB mini heater gives you stable, predictable warmth for tiny aquatic ecosystems without bulky gear or constant babysitting. It pairs with common USB power sources—like phone chargers or portable banks—making it perfect for apartments, offices, travel tanks, or educational setups. The 26°C constant temperature helps reduce fish stress, supports consistent metabolism, and promotes healthier feeding and activity patterns. With a compact, submersible design and clear status indicators, it’s easy to monitor and adjust as your tank inhabitants grow or change, and the option to add a second heater provides flexible control for larger nano-tanks. For best results, ensure you use a reliable 5V 2A power supply and follow usage notes to maintain even heating across your small aquatic environment.
SPECIFICATIONS
Battery Included: No
Brand Name: NONE
Choice: yes
High-concerned chemical: None
Origin: Mainland China
Type: fish
USB Mini Aquarium Heating Rod For small Fish Tank 26°C Constant Temperature Aquarium Heater submersible Thermostat Heater 10W
Product Description:
NoteThe product will work with a red indicator light, and when the product reaches a temperature of 26 degrees Celsius, it will light up a green indicator light and pause the work. The product does not have LED screen digital display, will not display any temperature figures.
Product name: Mini heating rod
Main body size: 8.5 * 1.8cm
Length of power line: 1.2m
Scope of use: small fish tank/pet water dispenser
Temperature control range: 26°C Constant Temperature
Product power: 10W
Input power: 5V 2A
Suitable for: about 2.5L water capacity
Product features:
1. Automatic constant temperature and high temperature protection.
2. USB plug can be connected to the mobile phone charger or the charging bank.
3. 26°C Constant Temperature
4. Quartz explosion-proof material is safe to use.
5. Small size, 52mm long heating rod, as big as the thumb, more beautiful.
6. The water level can be as low as 2cm and can be used by both fish and turtles. It can be used in fresh water, seawater fish tanks, pet feeders, etc.
Note:
Be sure to use 5V2A charger for power supply. If you use a charger with insufficient current, the flash screen will not be heated.
This product is suitable for 2L water capacity.
Two heating rods can be used in one fish tank to increase the heating capacity, for example, two heating rods can be used simultaneously in a fish tank with 4L water capacity.
However, only one heating rod can be used at the same time when one charger or power pack has multiple USB ports, otherwise it will cause heating failure or poor heating effect.
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