Hydor's Theo range are very high quality aquarium heaters. Made from hygienic shatter proof glass, these efficient heaters are tried and tested.
- Available in sizes ranging from 15w to 300w
- Shatter resistant glass
- Can be mounted at any angle
- No problems with thermal shock from going in and out of colder or warmer water
- 100% submersible and waterproof
- Compact and attractive design for minimal tank intrusion
- Italian brand, not a cheap knock off
- MINI 15w aquarium heater also available (not glass) - suits smaller aquariums (2.5 degree increase for 20L aquarium, 2 degree increase for 40L)
Suitable for:
Aquariums up to 300L that need heating! Perfect for tropical fish in colder climates
What we liked:
High quality and minimal returns
Less than ideal:
Nothing at all