USB Mini Aquarium Heater Rod (Submersible, 18–34°C Adjustable, Thermostat, Fish Tank)

Heat your small aquarium precisely and safely with this compact USB Mini Heater Rod! 🌡️

• 🔌 USB Powered - plugs into any USB power source for flexible, portable heating in nano tanks.
• 🌡️ 18–34°C Adjustable - dial in the exact temperature your tropical fish or shrimp require.
• 🛡️ Built-In Thermostat - automatic on/off cycling maintains your target temperature without overheating.
• 💧 Fully Submersible - waterproof design is safe for complete immersion in fresh or lightly salted water.
• 🐠 Nano Tank Ideal - compact rod size is perfect for tanks under 20L where full-size heaters are too large.