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Hydor ETH External Thermal Heater - In Line Heater ETH 300 - 300 Watt - (5/8" ID - 53-80 Gallon Tanks)

Hydor ETH External Thermal Heater - In Line Heater ETH 300 - 300 Watt - (5/8" ID - 53-80 Gallon Tanks)

Hydor ETH External Thermal Heater - In Line Heater ETH 300 - 300 Watt - (5/8" ID - 53-80 Gallon Tanks) more

$57.52

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Theo Heater 150 watt

Theo Heater 150 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

$23.99 $19.19

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(275,000+)
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

$17.99 $14.39

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(275,000+)
Hydor Theo Aquarium Heater, 25 Watts

Hydor Theo Aquarium Heater, 25 Watts

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 the water in... more

$66.63 $22.98

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Theo Heater 100 watt

Theo Heater 100 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

$20.99 $16.79

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(275,000+)
Hydor Submersible Aquarium Heater 25 Watt - 6.9" Long - (2 - 7 Gallons)

Hydor Submersible Aquarium Heater 25 Watt - 6.9" Long - (2 - 7 Gallons)

Hydor Submersible Aquarium Heater 150 Watt - 12" Long - (23 - 40 Gallons) more

$27.75

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Hydor USA Eth In-Line Heater, 300 watt

Hydor USA Eth In-Line Heater, 300 watt

Features: First and unique external heater for aquariums with the exclusive PTC (Positive Thermal Coefficient) technology The self-limiting PTC heating element guarantees maximum safety against any risk of overheating The exclusive technology and the... more

$71.91 $54.97

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Hydor 100W Submersible Glass Aquarium Heater - Original Theo (Pack of 1)

Hydor 100W Submersible Glass Aquarium Heater - Original Theo (Pack of 1)

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

$20.79

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Hydor Submersible Aquarium Heater 150 Watt - 12" Long - (23 - 40 Gallons)

Hydor Submersible Aquarium Heater 150 Watt - 12" Long - (23 - 40 Gallons)

Hydor Submersible Aquarium Heater 150 Watt - 12" Long - (23 - 40 Gallons) more

$31.14

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Hydor Submersible Aquarium Heater

Hydor Submersible Aquarium Heater

The Hydor Aquarium Heater is a submersible heater made with the exclusive PTC (Positive Thermal Coefficient) technology. This Hydor aquarium heater provides no thermal shock, is submersible, and engineered shatterproof glass designed to resist breakage... more

$22.13

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Hydor Submersible Aquarium Heater 400 Watt - 15.5" Long - (80 - 105 Gallons)

Hydor Submersible Aquarium Heater 400 Watt - 15.5" Long - (80 - 105 Gallons)

Hydor Submersible Aquarium Heater 150 Watt - 12" Long - (23 - 40 Gallons) more

$39.81

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Hydor 200W In-Line Heater, 1/2" Connection

Hydor 200W In-Line Heater, 1/2" Connection

long description is not available more

$83.84 $56.59

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Hydor Submersible Aquarium Heater 50 Watt - 7 Inch Long - (5 - 14 Gallons)

Hydor Submersible Aquarium Heater 50 Watt - 7 Inch Long - (5 - 14 Gallons)

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

$19.29

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Hydor 150W Submersible Glass Aquarium Heater - Original Theo

Hydor 150W Submersible Glass 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

$24.98

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Hydor Slim Skim Nano Internal Protein Skimmer For Tanks up to 35 Gallons - (3 1/8\"W x 12\"H)

Hydor Slim Skim Nano Internal Protein Skimmer For Tanks up to 35 Gallons - (3 1/8\"W x 12\"H)

Internal skimmer with small footprint Easy to install, fits in virtually any aquarium Easily disassembled for simple maintenance and cleaning Energy efficient Venturi impeller design Creates air bubbles for effective aeration more

$94.91

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Theo Heater 50 watt

Theo Heater 50 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

$19.99 $15.99

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(275,000+)
ETH In-Line Heater 300 watt, 5/8"

ETH In-Line Heater 300 watt, 5/8"

Prevents temperature variations caused by poor water circulation Precise, accurate temperature setting Indicator light shows when unit is "ON" Double insulated and double sealed The first compact aquarium heater that operates externally, saving... more

$54.99 $43.99

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(275,000+)
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

$29.99 $23.99

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(275,000+)
Theo Heater 200 watt

Theo Heater 200 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

$24.99 $19.99

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(275,000+)
Theo Heater 300 watt

Theo Heater 300 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

$27.99 $22.39

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(275,000+)
ETH In-Line Heater 200 watt, 5/8"

ETH In-Line Heater 200 watt, 5/8"

Prevents temperature variations caused by poor water circulation Precise, accurate temperature setting Indicator light shows when unit is "ON" Double insulated and double sealed The first compact aquarium heater that operates externally, saving... more

$42.39

FREE shipping

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(275,000+)
Theo Heater 150 watt

Theo Heater 150 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

$19.19

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(275,000+)
Mini Submersible Heater 15 Watts - (For Aquariums 5-10 Gallons)

Mini Submersible Heater 15 Watts - (For Aquariums 5-10 Gallons)

Submersible heater for small aquariums Great for under gravel use No setting needed Safe and effective in aquariums and terrariums more

$8.95

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ETH In-Line Heater 200 watt, 1/2"

ETH In-Line Heater 200 watt, 1/2"

Prevents temperature variations caused by poor water circulation Precise, accurate temperature setting Indicator light shows when unit is "ON" Double insulated and double sealed The first compact aquarium heater that operates externally, saving... more

$42.39

FREE shipping

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(275,000+)
Protein Skimmers Slim Skim

Protein Skimmers Slim Skim

Energy-efficient internal protein skimmer for small aquariums Easy-to-use protein skimmer with hobbyist-friendly features Magnet-suction cups ease placement in saltwater aquariums Revolutionary internal protein skimmer boasts outstanding... more

$129.99 $109.99

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(275,000+)
Protein Skimmers Slim Skim Nano

Protein Skimmers Slim Skim Nano

Energy-efficient internal protein skimmer for small aquariums Easy-to-use protein skimmer with hobbyist-friendly features Magnet-suction cups ease placement in saltwater aquariums Revolutionary internal protein skimmer boasts outstanding... more

$99.99 $79.99

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(275,000+)
Theo Heater 300 watt

Theo Heater 300 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

$22.39

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(275,000+)
Protein Skimmers Slim Skim Nano

Protein Skimmers Slim Skim Nano

Energy-efficient internal protein skimmer for small aquariums Easy-to-use protein skimmer with hobbyist-friendly features Magnet-suction cups ease placement in saltwater aquariums Revolutionary internal protein skimmer boasts outstanding... more

$79.99

FREE shipping

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(275,000+)
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

$14.39

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(275,000+)
Theo Heater 200 watt

Theo Heater 200 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

$19.99

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(275,000+)
Theo Heater 50 watt

Theo Heater 50 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

$15.99

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(275,000+)
Protein Skimmers Slim Skim

Protein Skimmers Slim Skim

Energy-efficient internal protein skimmer for small aquariums Easy-to-use protein skimmer with hobbyist-friendly features Magnet-suction cups ease placement in saltwater aquariums Revolutionary internal protein skimmer boasts outstanding... more

$109.99

FREE shipping

go to store
(275,000+)
Theo Heater 100 watt

Theo Heater 100 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

$16.79

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(275,000+)
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

$23.99

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(275,000+)
Deep Blue Heat Stik Mini Submersible Heater 60 Watt

Deep Blue Heat Stik Mini Submersible Heater 60 Watt

60W Mini Submersible Heater Features: Fully submersible, place anywhere in your aquarium. Slim, compact footprint conceals easily behind ornaments & decorations. Ideal for desktop systems. Preprogrammed, no adjustments needed. Freshwater & marine... more

$9.99

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Deep Blue Professional Heat Stik Sub Heater for Aquarium Mini 15-watt

Deep Blue Professional Heat Stik Sub Heater for Aquarium Mini 15-watt

Deep Blue Professional Heat Stik Mini Submersible Heater 15W Fully submersible, place anywhere in your aquarium. Slim, compact footprint conceals easily behind ornaments & decorations. Ideal for desktop systems. Preprogrammed, no adjustments needed.... more

$9.99

FREE shipping

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Deep Blue Heat Stik Mini Submersible Heater 30 Watt

Deep Blue Heat Stik Mini Submersible Heater 30 Watt

30W Mini Submersible Heater Features: Fully submersible, place anywhere in your aquarium. Slim, compact footprint conceals easily behind ornaments & decorations. Ideal for desktop systems. Preprogrammed, no adjustments needed. Freshwater & marine... more

$10.99

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Slim Heater for Mini Aquariums - 7.5W - Up to 5 gal.

Slim Heater for Mini Aquariums - 7.5W - Up to 5 gal.

A 7.5 watt Slim Heater is ideal for your mini or micro tropical aquarium up to 5 gallons in size. Shock proof heater is uniquely shaped to fit easily into a variety of tanks; above or below the substrate. Perfect for glass; acrylic; or plastic... more

$16.49

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ETH 300 In-Line Heater for 16mm or .625 in. Tubing - 300W

ETH 300 In-Line Heater for 16mm or .625 in. Tubing - 300W

The ETH external In-Line heater uses the advanced PTC system; which is a special polymer sheet; silk-screened with heating ink (like your car's windshield defroster) instead of metal coils. This state-of-the-art system allows the unit to be left... more

$55.95

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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

$29.99

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