You're in Fish Supplies

Need a Personal Shopper?

Subscribe to
Bizrate emails for the hottest
deals & products
,
PLUS a chance to

WIN $25

sign me up!

New winners chosen weekly.
No purchase necessary.

Hydor THEO Heater 100 Watt

Hydor THEO Heater 100 Watt

THEO aquarium heater has all the necessary features for safe and precise temperature maintance of the water in your tank.

$20.99

at Salty Supply

Hydor Theo Submersible Aquarium Heater 100 Watt

Hydor Theo Submersible Aquarium Heater 100 Watt

Hydor THEO Submersible Heater 100W Product #: HY-T11202 The first shatter-proof heater thanks to the peculiar glass tube. Maximum security: THEO is shock resistant thanks to the PTC heating element and the shatterproof glass tube. Free positioning in... ... more

Hydor Theo Submersible Aquarium Heater 100 Watt

Hydor THEO Submersible Heater 100W Product #: HY-T11202 The first shatter-proof heater thanks to the peculiar glass tube. Maximum security: THEO is shock resistant thanks to the PTC heating element and the shatterproof glass tube. Free positioning in...

eBay

$25.60

FREE shipping

go to store
Zoo Med Aquatic BettaTherm Heater: 7.5 Watts #BH-10 - Aquarium Heaters

Zoo Med Aquatic BettaTherm Heater: 7.5 Watts #BH-10 - Aquarium Heaters

Zoo Med Aquatic BettaTherm Heater: 7.5 Watts #BH-10 Zoo Med BettaTherm Heaters are perfect for your betta fish whose life is best in warm water. This 7.5 watt heater helps keep your betta bowl 5 - 10 degrees warmer than room temperature and is 100%... ... more

Zoo Med Aquatic BettaTherm Heater: 7.5 Watts #BH-10 - Aquarium Heaters

Zoo Med Aquatic BettaTherm Heater: 7.5 Watts #BH-10 Zoo Med BettaTherm Heaters are perfect for your betta fish whose life is best in warm water. This 7.5 watt heater helps keep your betta bowl 5 - 10 degrees warmer than room temperature and is 100%...

$18.99 $10.30

go to store
Hydor Hydor ETH External Thermal Heater - In Line Heater: ETH 300 - 300 Watt - (5/8 ID - 53-80 Gall

Hydor Hydor ETH External Thermal Heater - In Line Heater: ETH 300 - 300 Watt - (5/8 ID - 53-80 Gall

Hydor Hydor ETH External Thermal Heater - In Line Heater: ETH 300 - 300 Watt - (5/8 ID - 53-80 Gallon Tanks) #T08203 Hydor ETH External Thermal Heater In-Line Aquarium Heater suitable for all canister filters with 5/8 flexible hosing. No danger of... ... more

Hydor Hydor ETH External Thermal Heater - In Line Heater: ETH 300 - 300 Watt - (5/8 ID - 53-80 Gall

Hydor Hydor ETH External Thermal Heater - In Line Heater: ETH 300 - 300 Watt - (5/8 ID - 53-80 Gallon Tanks) #T08203 Hydor ETH External Thermal Heater In-Line Aquarium Heater suitable for all canister filters with 5/8 flexible hosing. No danger of...

$95.99 $49.99

go to store
Hydor Hydor ETH External Thermal Heater - In Line Heater: ETH 201 - 200 Watt - (5/8 ID - 26-53 Gall

Hydor Hydor ETH External Thermal Heater - In Line Heater: ETH 201 - 200 Watt - (5/8 ID - 26-53 Gall

Hydor Hydor ETH External Thermal Heater - In Line Heater: ETH 201 - 200 Watt - (5/8 ID - 26-53 Gallon Tanks) #841421000183 Hydor ETH External Thermal Heater In-Line Aquarium Heater suitable for all canister filters with 5/8 flexible hosing. No danger... ... more

Hydor Hydor ETH External Thermal Heater - In Line Heater: ETH 201 - 200 Watt - (5/8 ID - 26-53 Gall

Hydor Hydor ETH External Thermal Heater - In Line Heater: ETH 201 - 200 Watt - (5/8 ID - 26-53 Gallon Tanks) #841421000183 Hydor ETH External Thermal Heater In-Line Aquarium Heater suitable for all canister filters with 5/8 flexible hosing. No danger...

$88.99 $46.38

go to store
Theo Heater 400 watt

Theo Heater 400 watt

Patented heating element automatically turns off if water level declines Easy temperature adjustment - knob clicks at every degree change Submersible heater with shatterproof glass resists breakage Patented heating film and special shatterproof glass... ... more

Theo Heater 400 watt

Patented heating element automatically turns off if water level declines Easy temperature adjustment - knob clicks at every degree change Submersible heater with shatterproof glass resists breakage Patented heating film and special shatterproof glass...

Drs. Foster & Smith

(150,000+)

$26.99

go to store
Theo Heater 25 watt

Theo Heater 25 watt

Patented heating element automatically turns off if water level declines Easy temperature adjustment - knob clicks at every degree change Submersible heater with shatterproof glass resists breakage Patented heating film and special shatterproof glass... ... more

Theo Heater 25 watt

Patented heating element automatically turns off if water level declines Easy temperature adjustment - knob clicks at every degree change Submersible heater with shatterproof glass resists breakage Patented heating film and special shatterproof glass...

Drs. Foster & Smith

(150,000+)

$15.99

go to store
Tetra Submersible Heaters 100 watt;6-1/4"; up to 30 gallons

Tetra Submersible Heaters 100 watt;6-1/4"; up to 30 gallons

Submersible heaters for aquariums up to 30 gallons Pre-set electronic thermostat automatically maintains aquarium temperature Fully submersible, easy to conceal aquarium heater Perfect for smaller aquariums, this submersible heater requires no... ... more

Tetra Submersible Heaters 100 watt;6-1/4"; up to 30 gallons

Submersible heaters for aquariums up to 30 gallons Pre-set electronic thermostat automatically maintains aquarium temperature Fully submersible, easy to conceal aquarium heater Perfect for smaller aquariums, this submersible heater requires no...

Drs. Foster & Smith

(150,000+)

$15.99 $11.99

go to store
Eheim Jager Thermostatic Heater - 100 Watt

Eheim Jager Thermostatic Heater - 100 Watt

This fully submersible heater is made of a durable, shatter-proof glass with a thermo safety control that automatically shuts off the heater when the water gets too low, protecting it from running dry. It provides a precise temperature reading with a... ... more

Eheim Jager Thermostatic Heater - 100 Watt

This fully submersible heater is made of a durable, shatter-proof glass with a thermo safety control that automatically shuts off the heater when the water gets too low, protecting it from running dry. It provides a precise temperature reading with a...

PetSolutions

(25,000+)

$27.99 $20.69

go to store

PetSolutions

(25,000+)
Hydor Theo Submersible Aquarium Heater - 200 Watt

Hydor Theo Submersible Aquarium Heater - 200 Watt

Hydor THEO Submersible Heater 200W Product #: HY-T11302 The first shatter-proof heater thanks to the peculiar glass tube. Maximum security: THEO is shock resistant thanks to the PTC heating element and the shatterproof glass tube. Free positioning in... ... more

Hydor Theo Submersible Aquarium Heater - 200 Watt

Hydor THEO Submersible Heater 200W Product #: HY-T11302 The first shatter-proof heater thanks to the peculiar glass tube. Maximum security: THEO is shock resistant thanks to the PTC heating element and the shatterproof glass tube. Free positioning in...

eBay

$29.95

FREE shipping

go to store
Hydor Theo Submersible Heater 150 Watt

Hydor Theo Submersible Heater 150 Watt

Hydor THEO Submersible Heater 150W Product #: HY-T11602 The first shatter-proof heater thanks to the peculiar glass tube. Maximum security: THEO is shock resistant thanks to the PTC heating element and the shatterproof glass tube. Free positioning in... ... more

Hydor Theo Submersible Heater 150 Watt

Hydor THEO Submersible Heater 150W Product #: HY-T11602 The first shatter-proof heater thanks to the peculiar glass tube. Maximum security: THEO is shock resistant thanks to the PTC heating element and the shatterproof glass tube. Free positioning in...

eBay

$29.99

FREE shipping

go to store
Hydor Theo Heater 400 Watt

Hydor Theo Heater 400 Watt

Package Price? Questions? Call Us @ 810-299-2420 M-F 9AM-5PM EDT NEW Hydor Theo Heater 400 Watt Call us at 810-299-2420 for Special Packages Discretely labeled, Professionally packaged, shipped as fast as possible with care read the feedback for proof.... ... more

Hydor Theo Heater 400 Watt

Package Price? Questions? Call Us @ 810-299-2420 M-F 9AM-5PM EDT NEW Hydor Theo Heater 400 Watt Call us at 810-299-2420 for Special Packages Discretely labeled, Professionally packaged, shipped as fast as possible with care read the feedback for proof....

eBay

$35.42

FREE shipping

go to store
Hydor 50W Submersible Aquarium Heater - Original Theo

Hydor 50W Submersible Aquarium Heater - Original Theo

Theo Heater. New aquarium heater functioning with the exclusive PTC technology means that this heater will not break or damage when run out of the tank. Theo aquarium heater has all the necessary feature for safe and precise temperature maintenance of... ... more

Hydor 50W Submersible Aquarium Heater - Original Theo

Theo Heater. New aquarium heater functioning with the exclusive PTC technology means that this heater will not break or damage when run out of the tank. Theo aquarium heater has all the necessary feature for safe and precise temperature maintenance of...

Amazon.com

$15.16

go to store
Hydor 25W Submersible Aquarium Heater - Original Theo

Hydor 25W Submersible Aquarium Heater - Original Theo

Theo Heater. New aquarium heater functioning with the exclusive PTC technology means that this heater will not break or damage when run out of the tank. Theo aquarium heater has all the necessary feature for safe and precise temperature maintenance of... ... more

Hydor 25W Submersible Aquarium Heater - Original Theo

Theo Heater. New aquarium heater functioning with the exclusive PTC technology means that this heater will not break or damage when run out of the tank. Theo aquarium heater has all the necessary feature for safe and precise temperature maintenance of...

Amazon.com

$17.73

go to store
Hydor 150W Submersible Aquarium Heater - Original Theo

Hydor 150W Submersible Aquarium Heater - Original Theo

Theo Heater. New aquarium heater functioning with the exclusive PTC technology means that this heater will not break or damage when run out of the tank. Theo aquarium heater has all the necessary feature for safe and precise temperature maintenance of... ... more

Hydor 150W Submersible Aquarium Heater - Original Theo

Theo Heater. New aquarium heater functioning with the exclusive PTC technology means that this heater will not break or damage when run out of the tank. Theo aquarium heater has all the necessary feature for safe and precise temperature maintenance of...

Amazon.com

$18.81

go to store
Theo Submersible Aquarium Heater - Wattage: 300

Theo Submersible Aquarium Heater - Wattage: 300

HYY1028: Features: -Theo submersible aquarium heater.-Shatter resistant glass.-No damage if run dry.-Easy to read scale for precise temperature setting.-Safe if freshwater or saltwater aquariums.-UL approved. Specifications: -Available in 50, 100, 200,... ... more

Theo Submersible Aquarium Heater - Wattage: 300

HYY1028: Features: -Theo submersible aquarium heater.-Shatter resistant glass.-No damage if run dry.-Easy to read scale for precise temperature setting.-Safe if freshwater or saltwater aquariums.-UL approved. Specifications: -Available in 50, 100, 200,...

Rakuten.com Shopping

(1,000,000+)

$39.99 $32.34

go to store

Rakuten.com Shopping

(1,000,000+)
Theo Submersible Aquarium Heater - Wattage: 200

Theo Submersible Aquarium Heater - Wattage: 200

HYY1028: Features: -Theo submersible aquarium heater.-Shatter resistant glass.-No damage if run dry.-Easy to read scale for precise temperature setting.-Safe if freshwater or saltwater aquariums.-UL approved. Specifications: -Available in 50, 100, 200,... ... more

Theo Submersible Aquarium Heater - Wattage: 200

HYY1028: Features: -Theo submersible aquarium heater.-Shatter resistant glass.-No damage if run dry.-Easy to read scale for precise temperature setting.-Safe if freshwater or saltwater aquariums.-UL approved. Specifications: -Available in 50, 100, 200,...

Rakuten.com Shopping

(1,000,000+)

$37.32 $16.29

go to store

Rakuten.com Shopping

(1,000,000+)
THEO Heater - 50W - Up to 14 gal.

THEO Heater - 50W - Up to 14 gal.

Provide your tank with the proper temperature with the most advanced heating technology available. THEO heaters are designed with a peculiar cylindrical shape that renders them virtually shatterproof. Fully submersible; THEO heaters function with the... ... more

THEO Heater - 50W - Up to 14 gal.

Provide your tank with the proper temperature with the most advanced heating technology available. THEO heaters are designed with a peculiar cylindrical shape that renders them virtually shatterproof. Fully submersible; THEO heaters function with the...

That Fish Place - That Pe...

(50,000+)

$28.99

go to store
THEO SHATTERPROOF HEATER

THEO SHATTERPROOF HEATER

The Theo Heater is 9'' long and uses 100Wattts of power. It is an aquarium heater ideal for tanks up to 50 gallons. It is temperature controlled and maintained by a highly precise micro-switch, ptc element, and can be used positioned inside some hydor... ... more

THEO SHATTERPROOF HEATER

The Theo Heater is 9'' long and uses 100Wattts of power. It is an aquarium heater ideal for tanks up to 50 gallons. It is temperature controlled and maintained by a highly precise micro-switch, ptc element, and can be used positioned inside some hydor...

Rakuten.com Shopping

(1,000,000+)

$47.00 $24.86

go to store

Rakuten.com Shopping

(1,000,000+)
THEO Heater - 150W - Up to 40 gal.

THEO Heater - 150W - Up to 40 gal.

Provide your tank with the proper temperature with the most advanced heating technology available. THEO heaters are designed with a peculiar cylindrical shape that renders them virtually shatterproof. Fully submersible; THEO heaters function with the... ... more

THEO Heater - 150W - Up to 40 gal.

Provide your tank with the proper temperature with the most advanced heating technology available. THEO heaters are designed with a peculiar cylindrical shape that renders them virtually shatterproof. Fully submersible; THEO heaters function with the...

That Fish Place - That Pe...

(50,000+)

$29.99

go to store
THEO Heater - 200W - Up to 53 gal.

THEO Heater - 200W - Up to 53 gal.

Provide your tank with the proper temperature with the most advanced heating technology available. THEO heaters are designed with a peculiar cylindrical shape that renders them virtually shatterproof. Fully submersible; THEO heaters function with the... ... more

THEO Heater - 200W - Up to 53 gal.

Provide your tank with the proper temperature with the most advanced heating technology available. THEO heaters are designed with a peculiar cylindrical shape that renders them virtually shatterproof. Fully submersible; THEO heaters function with the...

That Fish Place - That Pe...

(50,000+)

$27.99

go to store
Show
Hide
Hide