Peaceful Pleasures Health and Wellness
Submersible Aquarium Heater 50W/300W | Fish Tank Heating Rod
Submersible Aquarium Heater 50W/300W | Fish Tank Heating Rod
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Keep Your Fish Happy with Precise Water Temperature Control
Give your aquarium the stable, warm environment your fish deserve. This submersible glass aquarium heater is engineered to maintain consistent water temperatures between 20–34°C (68–93°F), making it ideal for tropical freshwater fish tanks. Available in 50W and 300W options to suit tanks of various sizes, this heater is a reliable, set-and-forget solution for hobbyists and serious aquarists alike.
Made in Mainland China.
Key Features
- 🌡️ Adjustable Temperature Range: 20–34°C / 68–93°F — easy dial control for precise adjustment
- 💧 Fully Submersible: Waterproof double-insulation design for safe, complete underwater use
- 🔴 Power Indicator Light: Instantly know when the heater is actively heating
- 🔁 Auto-Thermostat: Automatically maintains your set temperature without constant monitoring
- ⚡ Two Power Options: 50W (ideal for smaller tanks) or 300W (for larger aquariums)
- 🛡️ Safety First: Designed with double insulation for peace of mind
- 🐟 Freshwater Use: Optimized for freshwater aquarium environments
Specifications
| Color | Black |
| Plug Type | EU Plug |
| Wattage | 50W / 300W (Optional) |
| Voltage | 220–240V |
| Frequency | 50/60Hz |
| Temperature Range | 20–34°C / 68–93°F |
| Length (50W) | 17.5 cm / 6.9 in |
| Length (300W) | 29 cm / 11.4 in |
| Cable Length | ~85 cm / 33.5 in |
| Package Weight | 170g–230g / 6–8.1 oz |
Important Safety Notes
- This heater is suitable for freshwater use only — do not use in saltwater tanks.
- The heating rod must be fully submerged at all times during operation. Never allow any part to be exposed to air while powered.
- When the indicator light is on, the heater is actively working.
- Before cleaning or handling, turn off the power and allow 15–20 minutes for the rod to cool completely to avoid burns.
What's in the Box
- 1 × Submersible Aquarium Heating Rod (50W or 300W — your choice)
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Further Reading
Learn more about responsible fishkeeping and aquatic animal welfare from the U.S. Fish & Wildlife Service – Fisheries.
Frequently Asked Questions
Q: What size aquarium is the 50W submersible heater suitable for?
A: The 50W aquarium heater is best suited for smaller fish tanks, typically up to 15–20 gallons. For larger freshwater aquariums, the 300W version provides more consistent and efficient heating performance.
Q: Can this aquarium heating rod be used in a saltwater tank?
A: No — this submersible heater is designed for freshwater aquariums only. Using it in a saltwater or marine environment may damage the heater and could be unsafe for your fish.
Q: How do I safely clean the aquarium heater?
A: Always switch off and unplug the heater first, then wait 15 to 20 minutes for the heating rod to cool down completely before handling or cleaning. This prevents burns and extends the life of the device.
Q: How do I know if the heater is working correctly?
A: The built-in power indicator light illuminates when the heater is actively heating the water. Once the set temperature is reached, the thermostat will cycle the heater off automatically until the temperature drops again.
