RS Electrical 75W Aquarium Heater – Automatic Submersible Fish Tank Heater (18–32°C)

Keeping water at a steady temperature is one of the most important factors for a healthy aquarium, and the RS Electrical 75W Aquarium Heater makes that straightforward. This automatic submersible fish tank heater holds a stable 18–32°C, which is why it’s also a practical choice for mushroom grow setups where consistent ambient warmth matters.

Stable Heating for Aquariums and Grow Setups

The RS Electrical 75W Aquarium Heater is suitable for tanks up to 75 litres (20 gallons) and supports tropical fish, aquatic plants and other temperature-sensitive organisms. With its compact double glass build and adjustable automatic thermostat, this submersible fish tank heater is frequently used in monotubs, incubation containers and other mushroom cultivation supplies where a consistent surrounding temperature helps maintain stable conditions.

Why Growers and Aquarists Choose This Heater

• Adjustable 18–32°C range lets you dial in the exact temperature your tank or grow container needs.
• Automatic thermostat regulates heat output on its own, reducing the temperature swings that stress fish or sensitive cultures.
• Fully submersible double glass tube distributes warmth evenly and is built for reliable long-term use.
• Suitable for freshwater and saltwater aquariums up to 75 litres, plus grow reservoirs and incubators.
• Simple installation with the included suction cups — attach, set your temperature and let it work.

Technical Specifications

• Power: 75 Watts
• Voltage: 220–240V / 50–60Hz
• Temperature range: 18°C – 32°C
• Recommended tank size: up to 75L
• Type: submersible aquarium heater
• Material: double glass heating tube

Frequently Asked Questions

What tank size is the RS Electrical 75W Aquarium Heater suitable for?

This 75-watt submersible heater is suitable for aquariums up to roughly 75 litres (20 gallons). Larger volumes may benefit from a higher-wattage model or an additional heat source.

Can this heater be used in a mushroom grow setup?

Yes. Many growers place it in a water reservoir or temperature-controlled container within monotubs and incubators to help stabilise the surrounding temperature. Results depend on your setup and ambient conditions.

How do I install the aquarium heater?

Attach the heater to the tank glass using the included suction cups, fully submerge it, set your preferred temperature and let the automatic thermostat regulate the heat.

Order the RS Electrical 75W Aquarium Heater today from our European smartshop and enjoy fast dispatch from the Netherlands, discreet packaging and responsive customer support.