The Bottom Line
Hagen Tronic Submersible Aquarium Heaters are well built units which come in five (25 to 300) wattages. These heaters are easy to use and garner high satisfaction among consumers.
Pros
- Easy to use.
- No calibration required.
- Safety shut-off.
Cons
- Rather pricey.
- Reported to run "hot".
Description
- Fully submersible heaters.
- Available in five sizes for tanks from 25 to 100 gallons.
- Quality construction.
- Safety shut-off.
- Optional "Therma Guard" to protect fish from high heat output.
Guide Review - Hagen Tronic Submersible Aquarium Heaters
The Tronic models are Hagen's best submersible aquarium heaters. They are built to last, with high quality electronics and heavy glass tube. Consumers report that they are very pleased with their performance, however some have found that the tubes run a bit "hot" during operation and can damage some tank critters if the optional Therma Guard is not installed on the heater. The Hagen Tronics are in the upper price range for heaters, however a majority of users indicate that they are well worth the few extra dollars.
