Nano Aquarium Heater with Thermostat – 100W Adjustable Heater

Keep your aquarium stable and reliably heated with the Castle Dawn Aquatics 100W Nano Heater featuring a built-in thermostat. Designed for 50–100 litre fish tanks, this compact heater delivers precise temperature control, fast heating, and safe long-term performance. Ideal for tropical fish, Betta sororities, community tanks, planted aquariums, and nano marine systems.

Key Features and Important Notes:

• What’s Included:
  – 1 × 100W Nano Aquarium Heater
  – 1 × Thermostat Temperature Control Dial
  – 1 × Suction Cup Mount
  – 1 × Instruction Sheet
• Size:
  Heater Size: 10 cm × 2.5 cm
  Size in inches: 3.93 × 0.98 inches
• Tank Capacity:
  Suitable for 50–100 litres
  US Gallons: 13.2–26.4 gallons
  UK Gallons: 11–22 gallons
• Adjustable Thermostat:
  Built-in thermostat allows precise temperature adjustment for stable heating.
• Fast Heating Element:
  Upgraded ceramic core distributes heat evenly, maintaining consistent water temperature.
• Compact Design:
  Small footprint fits perfectly in nano and mid-sized tanks without disrupting aquascapes.
• Safety Features:
  Overheat protection and automatic shut-off when removed from water.
• QC & QA Verified:
  Every unit is quality-checked and safety-tested before shipping.
• Installation:
  Fully submersible heater. For best results, place near the flow for even heat distribution.
• Suitable For:
  Betta fish, shrimp, nano aquariums, fry tanks, desktop aquascapes.
• Warranty: 1 Year Warranty (T&Cs apply).
• Safety Notice:
  Low-cost heaters from platforms like Temu have been reported to crack, explode, or fail within weeks. All Castle Dawn Aquatics heaters are QC and QA tested for safe, reliable performance. Backed by a 1-Year warranty.