Mini USB Aquarium Heater Rod 18-34°C, 2L Tanks

Compact USB Aquarium Heater for Stable Water Temperature

This mini aquarium heating rod is designed to deliver consistent, controlled warmth for small tanks and nano setups. Fully submersible and USB powered, it offers an adjustable temperature range from 18-34°C, making it suitable for many tropical fish, shrimp, and small aquatic reptiles in compact environments up to approximately 2L.

The heater features an automatic constant-temperature function with built-in high-temperature protection to help safeguard your livestock. Its short, thumb-sized heating element (approx. 52 mm) is made from durable, quartz-based material designed for reliable, long-term use. An external temperature control dial allows you to fine-tune the water temperature without removing the heater from the tank.

Powered via a standard 5V 2A USB source, this heater can be connected to a USB wall adapter, power bank, or computer, offering flexible installation options where traditional outlets are limited. It operates in shallow water levels from 2 cm, making it suitable for small fish tanks, turtle tubs, desktop aquariums, and similar applications in both freshwater and marine systems. For larger setups, two heaters may be used in a 4L tank when powered by separate USB chargers.

Why It's a Smart Choice

• Precise temperature control - Adjustable 18-34°C thermostat supports a wide range of species and seasonal needs.
• Space-saving design - Ultra-compact rod preserves swimming space and maintains a clean, uncluttered display.
• Flexible USB power - Runs from a 5V 2A USB source, ideal for desks, offices, and locations with limited access to wall outlets.

FAQ

Q: What tank size is this heater suitable for?
A: It is designed for aquariums or containers of approximately 2L. For around 4L, two heaters may be used with separate USB power sources.

Q: What power supply do I need?
A: Use a 5V 2A USB charger or power bank. Insufficient current may prevent the heater from reaching the set temperature.

Q: Can it be used with turtles or in shallow water?
A: Yes. It can operate in water as shallow as 2 cm and is suitable for small turtle setups and other shallow enclosures.

Q: Is it safe for saltwater tanks?
A: Yes, it can be used in both freshwater and marine aquariums. Rinse and inspect regularly as part of normal maintenance.