Buy RS ELECTRICAL 25W glass auto cut submersible aquarium heater. Ideal for small fish tanks, safe, energy efficient & reliable.
The RS ELECTRICAL Glass auto cut Submersible Aquarium Heater(25W) is a reliable and energy efficient heating solution designed to maintain a stable water temperature for freshwater aquariums. Made with high quality heat-resistant glass, this immersion heater ensures safe and performance of fish and aquatic plants.
Equipped with an automatic cut-off thermostat, the heater regulates temperature efficiently, preventing overheating and ensuring the comfort and health of your aquarium inhabitants. Its fully submersible design allows easy installation in fish tanks, bowls and nano aquariums.
Ideal for beginners and experienced aquarists, this 25 W heater is perfect for small aquariums up to 30-50 liters, offering dependable temperature control with low power consumption.
This automatic Heater(Thermostat) helps in fast aquarium water heating which is used mostly in winter. Hobbygroup recommends it to use it for 365 days for costly or imported fishes and also for all all fishes as it helps to maintain a constant temperature in the water making it more healthy and suitable for fishes. Like in winter we use room heaters and in summer seasons we are using air conditioner in the same fishes also needs a constant temperature to keep them healthy and playful.
This heater comes with an automatic setup which means not it off or on, after regulating the temperature of water it automatically regulates itself. Customers can adjust the temperature of the heater by adjusting the black cork present at the bottom of the heater in anticlockwise or clockwise direction. The light in the heater indicates when the water temperature is low and switches it off automatically itself after adjusting the temperature. Hobbygroup suggest it is a worth purchase to keep your fishes healthy showing care for your loved ones.
Important guidelines from Hobbygroup:
While changing water of aquarium turn it off before at least 10 minutes prior to the duration of changing water. It has a glass body so while cleaning the glass customers are requested to be careful. Never switch it on outside the aquarium Hobbygroup find that it is prone to electric shock outside the aquarium. So it will be helpful for customers to maintain safety and work as per the provided guidelines.

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