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Aquarium Heaters: Hydor Theo Submersible Heaters
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Hydor Theo 50 Watt Aquarium Heater
Hydor Theo 50 Watt Aquarium Heater
Our Price: $19.99
Sale Price: $17.49
You save $2.50!
In Stock

Hydor Theo 50 Watt Aquarium Heater is a fully submersible, shatter-proof  glass aquarium heater.
  • Maximum security: THEO is shock resistant thanks to the PTC heating element and the shatterproof glass tube
  • Free positioning in aquarium with supplied suction cups
  • Self-limiting: the patented PTC heating system guarantees operation in complete safety because in case of dry running there is no danger for damage
  • Temperature range: 70-94 degrees Fahrenheit
Hydor Theo 100 Watt Aquarium Heater
Hydor Theo 100 Watt Aquarium Heater
Our Price: $21.29
Sale Price: $17.50
You save $3.79!
In Stock

Hydor Theo 100 Watt Aquarium Heater is a fully submersible, shatter-proof  glass aquarium heater.
  • Maximum security: THEO is shock resistant thanks to the PTC heating element and the shatterproof glass tube
  • Free positioning in aquarium with supplied suction cups
  • Self-limiting: the patented PTC heating system guarantees operation in complete safety because in case of dry running there is no danger for damage
  • Temperature range: 70-94 degrees Fahrenheit
Hydor Theo 200 Watt Aquarium Heater
Hydor Theo 200 Watt Aquarium Heater
Our Price: $24.99
Sale Price: $20.19
You save $4.80!
In Stock

Hydor Theo 200 Watt Aquarium Heater is a fully submersible, shatter-proof  glass aquarium heater.
  • Maximum security: THEO is shock resistant thanks to the PTC heating element and the shatterproof glass tube
  • Free positioning in aquarium with supplied suction cups
  • Self-limiting: the patented PTC heating system guarantees operation in complete safety because in case of dry running there is no danger for damage
  • Temperature range: 70-94 degrees Fahrenheit
Hydor Theo 300 Watt Aquarium Heater
Hydor Theo 300 Watt Aquarium Heater
Our Price: $26.89
Sale Price: $20.20
You save $6.69!
In Stock

Hydor Theo 300 Watt Aquarium Heater is a fully submersible, shatter-proof  glass aquarium heater.
  • Maximum security: THEO is shock resistant thanks to the PTC heating element and the shatterproof glass tube
  • Free positioning in aquarium with supplied suction cups
  • Self-limiting: the patented PTC heating system guarantees operation in complete safety because in case of dry running there is no danger for damage
  • Temperature range: 70-94 degrees Fahrenheit
Hydor 400 Watt Theo Aquarium Heater
Hydor 400 Watt Theo Aquarium Heater
Our Price: $27.49
Sale Price: $22.49
You save $5.00!
(Out of Stock)

Hydor Theo 400 Watt Aquarium Heater is a fully submersible, shatter-proof  glass aquarium heater.
  • Maximum security: THEO is shock resistant thanks to the PTC heating element and the shatterproof glass tube
  • Free positioning in aquarium with supplied suction cups
  • Self-limiting: the patented PTC heating system guarantees operation in complete safety because in case of dry running there is no danger for damage
JBJ True Temp Heater Holder
JBJ True Temp Heater Holder
Our Price: $28.99
In Stock

The JBJ True Temp Heater Holder is a replacement heater holder for the JBJ True Temp Titanium Heating Systems. It also can be used as a safety guard and magnet holder for heaters from other manufacturers. The holder can handle heaters up to 16" in length and 1" diameter. This will accommodate the Hydor Theo, Ebo Jager and Eheim aquarium heaters. The heater holder comes in two sections and you can just use the 9" section for shorter heaters. The safety guard will prevent against heater breakage caused by large, aggressive fish.