Cobalt Neo Thermal Heater 75 W (Plastic LED)
The all new Cobalt Aquatics NEO-Therm electronic heaters feature a modern, super flat design with an easy-to-use one-touch control system. The advanced electronic thermostat is accurate to ±0.5ºF and displays both set temperature and tank temperature simultaneously via LED. The set temperature range goes up to 96ºF.
For safety and reliability, the heater includes integrated thermal protection that automatically shuts it off before overheating. The shatterproof outer casing makes it highly durable for use in aquariums and terrariums.
| Model | Temperature Rise | Capacity |
|---|---|---|
| 75 W | 7-14 degree F | Less than 7 degree F |
| 25 W | 2-4 gal (10 – 15 l) | 2-7 gal (10 – 25 l) |
Available in 25-100 watt sizes. 3-year warranty.
FAQ
What is the temperature accuracy of the heater?
The heater has an electronic thermostat accurate to ±0.5ºF.
Does the heater have a safety feature to prevent overheating?
Yes, it includes integrated thermal protection that automatically shuts off the heater before it can overheat.
Is the heater suitable for saltwater tanks?
Yes, it is designed for both freshwater and saltwater aquariums and terrariums.

Ava White –
Installed the 75W model in my 10-gallon saltwater tank. The temperature stays stable and the LED display shows both set and actual temps clearly. No issues with overheating even after several weeks of use. Very reliable and easy to adjust.
Carol Lyman –
The flat design fits well in my tank without taking up much space. The one-touch control is simple and the LED shows temperature changes instantly. I noticed a slight temperature rise, but it stayed within the expected range.
Simon Watson –
Great build quality. The shatterproof casing feels solid and the thermostat works precisely. I’ve used it for over three months with no malfunctions. Perfect for maintaining consistent water temperature in my terrarium.