Hydor Theo Aquarium Heater 300w 39cm The Hydor Theo heater is an essential aquarium component for maintaining accurate and safe water temperatures in any tank. Theo is a secure, functional and aesthetically appealing product. Main...

Hydor Theo Aquarium Heater 200w 30cm The Hydor Theo heater is an essential aquarium component for maintaining accurate and safe water temperatures in any tank. Theo is a secure, functional and aesthetically appealing product. Main...

Hydor Theo Aquarium Heater 150w 30cm The Hydor Theo heater is an essential aquarium component for maintaining accurate and safe water temperatures in any tank. Theo is a secure, functional and aesthetically appealing product. Main...

Hydor Theo Aquarium Heater 100w 22cm The Hydor Theo heater is an essential aquarium component for maintaining accurate and safe water temperatures in any tank. Theo is a secure, functional and aesthetically appealing product. Main...

Hydor Theo Aquarium Heater 50w 17cm The Hydor Theo heater is an essential aquarium component for maintaining accurate and safe water temperatures in any tank. Theo is a secure, functional and aesthetically appealing product. Main...

Hydor Theo Aquarium Heater 25w 17cm The Hydor Theo heater is an essential aquarium component for maintaining accurate and safe water temperatures in any tank. Theo is a secure, functional and aesthetically appealing product. Main...