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Penn Plax 8 in. 50 Watt Heater for 15 gal. Aquarium - CH875

Penn Plax 8 in. 50 Watt Heater for 15 gal. Aquarium - CH875

Automatically sets and maintains your desired temperature. Accurate to 1 degree. Fully submersible. Can be used for fresh and salt water aquariums. more

$22.42 $14.00

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

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

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

$8.09

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Best Seller
Penn Plax 8 in. 50 Watt Heater for 15 gal. Aquarium

Penn Plax 8 in. 50 Watt Heater for 15 gal. Aquarium

" Penn Plax Penn-Plax is a family-owned company in operation since 1959. They specialize in creating excellent pet supplies for animals both great and small. Best known for producing pet products at affordable prices, the Penn-Plax brand is synonymous... more

$36.99 $14.00

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Penn Plax 8 in. 50 Watt Heater for 15 gal. Aquarium - CH875

Penn Plax 8 in. 50 Watt Heater for 15 gal. Aquarium - CH875

Automatically sets and maintains your desired temperature. Accurate to 1 degree. Fully submersible. Can be used for fresh and salt water aquariums. more

$14.00

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Penn Plax 8 in. 50 Watt Heater for 15 gal. Aquarium - CH875

Penn Plax 8 in. 50 Watt Heater for 15 gal. Aquarium - CH875

Automatically sets and maintains your desired temperature. Accurate to 1 degree. Fully submersible. Can be used for fresh and salt water aquariums. more

$14.00

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Hydor Usa Inc. Theo 300 Watt Submersible Shatterproof Heater 15.5" Hy00037

Hydor Usa Inc. Theo 300 Watt Submersible Shatterproof Heater 15.5" Hy00037

300W submersible aquarium heater. UL listed. Safe and reliable. Made from specially enginereed shatterproof glass. Temperature controlled and maintained by precise micro-switch. For aquariums 53-80 gallons.Length - 15.5 Part #: AHY00037Item Name: Theo... more

$34.61

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"Aqueon Submersible Aquarium Heaters (10"" Length; For 15-40 gallon Aquariums; 100 Watts)"

"Aqueon Submersible Aquarium Heaters (10"" Length; For 15-40 gallon Aquariums; 100 Watts)"

Aqueon features a variety of accessories to help keep your fish and their aquatic environment clean and healthy. Aqueon introduces the most accurate, reliable, durable and easy to use aquarium heaters on the market. Available in five sizes/wattages to... more

$36.00 $18.24

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Slim Heater for Mini Aquariums - 5 to 10 gal. - 15W

Slim Heater for Mini Aquariums - 5 to 10 gal. - 15W

A 15 watt Slim Heater is ideal for your mini or micro tropical aquarium 5 to 10 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

$18.99

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Tetra HT30 Submersible Heater 100 Watt (1030 Gal)

Tetra HT30 Submersible Heater 100 Watt (1030 Gal)

HT Submersible Heater (100 Watt) The new Tetra HT30 submersible heaters for aquariums ranging from 2 to 30 gallons are easy to use. The electronic thermostat automatically adjusts heat output to keep the water at a constant 78F. All you have to do is... more

$19.86 $12.29

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Fluval M300 Submersible Glass Aquarium Heater (300 watts)

Fluval M300 Submersible Glass Aquarium Heater (300 watts)

The Fluval "M" 300 watt submersible heater is quality manufactured in Europe using superior components and construction. This sleek, compact Fluval heater can be trusted for exceptional performance and unsurpassed reliability. Unique only to the Fluval... more

$33.79 $25.99

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Fluval Advance Electronic Aquarium Heater (300 Watt)

Fluval Advance Electronic Aquarium Heater (300 Watt)

The Fluval Advanced Electronic Aquarium Heater is a highly accurate, safe and feature rich heater for your aquarium. With easy to adjust temperature controls, you can quickly and precisely set in 0.5deg; increments. An integrated fish guard insures... more

$64.99 $55.99

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Aqueon Pro Heater 150 Watt

Aqueon Pro Heater 150 Watt

Pro Heaters are precision calibrated aquarium heaters that are full submersible • Power Monitor light (Green �\" Heating ; Red �\" Aquarium at set temperature) • Shatterproof and Nearly Indestructible • Electronic Thermostat for Safety and Accurate... more

$41.99

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Aqueon Pro Heater 250 Watt

Aqueon Pro Heater 250 Watt

Pro Heaters are precision calibrated aquarium heaters that are full submersible • Power Monitor light (Green �\" Heating ; Red �\" Aquarium at set temperature) • Shatterproof and Nearly Indestructible • Electronic Thermostat for Safety and Accurate... more

$45.99

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Aqueon Pro Heater 200 Watt

Aqueon Pro Heater 200 Watt

Pro Heaters are precision calibrated aquarium heaters that are full submersible • Power Monitor light (Green �\" Heating ; Red �\" Aquarium at set temperature) • Shatterproof and Nearly Indestructible • Electronic Thermostat for Safety and Accurate... more

$43.99

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Eheim Jager 50 Watt Aquarium Heater

Eheim Jager 50 Watt Aquarium Heater

Eheim Jager Aquarium Heater Obvious ideas often are the best ones. For example, the aquarium heater as a rod. The heating rod is simply hung in the water and heats it. It is true that the principle is still the same as decades ago. But a lot has... more

$17.49

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Eheim Jager 75 Watt Aquarium Heater

Eheim Jager 75 Watt Aquarium Heater

Eheim Jager Aquarium Heater Obvious ideas often are the best ones. For example, the aquarium heater as a rod. The heating rod is simply hung in the water and heats it. It is true that the principle is still the same as decades ago. But a lot has... more

$17.49

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Eheim Jager 25 Watt Aquarium Heater

Eheim Jager 25 Watt Aquarium Heater

Eheim Jager Aquarium Heater Obvious ideas often are the best ones. For example, the aquarium heater as a rod. The heating rod is simply hung in the water and heats it. It is true that the principle is still the same as decades ago. But a lot has... more

$17.49

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23" 2x24 Watt HO, 15 LED Aruba Sun 2 Aquarium Light Kit

23" 2x24 Watt HO, 15 LED Aruba Sun 2 Aquarium Light Kit

Low profile T5 High Output (HO) Fluorescent Retrofit Kit.Durable German mirror finish, corrosion resistant, anodized aluminum reflectors rotate 180 degrees and wrap-around T5 tubes boosting light output, directing light toward your aquarium.Enclosed... more

$129.24

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35" 2x39 Watt HO, 15 LED Aruba Sun 2 Aquarium Light Kit

35" 2x39 Watt HO, 15 LED Aruba Sun 2 Aquarium Light Kit

Low profile T5 High Output (HO) Fluorescent Retrofit Kit.Durable German mirror finish, corrosion resistant, anodized aluminum reflectors rotate 180 degrees and wrap-around T5 tubes boosting light output, directing light toward your aquarium.Enclosed... more

$168.30

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Aqueon Pro Heater 150 Watt (6107)

Aqueon Pro Heater 150 Watt (6107)

Aqueon Pro Heater 150 Watt(6107)Features: Power Monitor Light: Red For Heating And Green When Aquarium Has Reached Set Temperature. Fully Submersible And Can Be Placed Horizontally Or Vertically In The Aquarium. For Freshwater And Marine Aquariums.... more

$72.89

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Hydor Usa Inc. Theo 50 Watt Submersible Shatterproof Heater 7" Hy00034

Hydor Usa Inc. Theo 50 Watt Submersible Shatterproof Heater 7" Hy00034

50W submersible aquarium heater. UL listed. Safe and reliable. Made from specially enginereed shatterproof glass. Temperature controlled and maintained by precise micro-switch. Extremely compact at 7 . For aquariums 5-14 gallons.Length - 7 Part #:... more

$33.36

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GE 22920 - F15T8/AR/SA Fluorescent Plant Aquarium Terrarium Tube Light Bulb

GE 22920 - F15T8/AR/SA Fluorescent Plant Aquarium Terrarium Tube Light Bulb

GE 15 watt - 18" - T8 - Medium Bi-Pin (G13) Base - 10,000K - FS Series - Plant / Aquarium / Terrarium | GE Fluorescent Light Bulb (F15T8/AR/SA 22920) more

$7.99

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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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GE 22907 - F15T8/AR/FR Fluorescent Plant Aquarium Terrarium Tube Light Bulb

GE 22907 - F15T8/AR/FR Fluorescent Plant Aquarium Terrarium Tube Light Bulb

GE 15 watt - 18" - T8 - Medium Bi-Pin (G13) Base - 4,000K - Freshwater Aquarium - Plant / Aquarium / Terrarium | GE Fluorescent Light Bulb (F15T8/AR/FR 22907) more

$5.99

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Marina Style 5 Aquarium Kit - 5 gal.

Marina Style 5 Aquarium Kit - 5 gal.

Marina Style 5 aquarium kit comes with everything you need for easy set up. The modern black canopy fits any decor. Marina Style 5 Kit includes a Marina Slim S10 clip-on filter; quick-change filter cartridges; incandescent canopy with 1 x 15 Watt clear... more

$73.79

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Tetra Pond 26446 100 Watt Submersible Heater (Pond Supplies), Gardening

Tetra Pond 26446 100 Watt Submersible Heater (Pond Supplies), Gardening

Submersible heater Easy to use Adjustable between 72-degreeF and 85-degreeF Indicator light to let you know when the heater is on Works in aquariums ranging from 2-55 gallons Electronic thermostat automatically keeps heat at a constant 78-degreeF 100... more

$28.99

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(675,000+)
'Aqueon Submersible Aquarium Heaters (10'' Length; For 15-40 gallon Aquariums; 100 Watts)', Multicolor

'Aqueon Submersible Aquarium Heaters (10'' Length; For 15-40 gallon Aquariums; 100 Watts)', Multicolor

With Aqueon, it's all about the fish. Aqueon makes a variety of aquarium solutions to sustain healthy and happy fish and aquatic life. Keep your tropical fish warm with the Aqueon Glass Adjustable Submersible Aquarium Heater. Constructed from thermal... more

$18.49

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Penn Plax 10 in. 150 Watt Heater for 30 gal. Aquarium, Multicolor

Penn Plax 10 in. 150 Watt Heater for 30 gal. Aquarium, Multicolor

Penn-Plax is a family-owned company in operation since 1959. They specialize in creating excellent pet supplies for animals both great and small. Best known for producing pet products at affordable prices, the Penn-Plax brand is synonymous with... more

$12.34

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Fluval E Series Heaters 200 watt

Fluval E Series Heaters 200 watt

"Innovative electronic heater for fresh and saltwater aquariums Advanced aquarium heater detects abnormal or non-optimal conditions Heater microprocessor monitors and displays aquarium water temperature The most technologically advanced submersible... more

$53.99

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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

$54.99

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(275,000+)
Cobalt International Electric Neo-Therm Submersible Aquarium Heater, 50 Watt, Black

Cobalt International Electric Neo-Therm Submersible Aquarium Heater, 50 Watt, Black

Founded in April 2011, Cobalt Aquatics produces a wide range of aquarium items, from fish food to eletrical equipment. Cobalt Aquatics Neo-Therm Heater keeps your aquarium between 66°F and 96°F. For safety, thermal protection circuitry shuts the heater... more

$34.25

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Lifegard Aquatics UV Sterilizer Parts 15/25/40 Watt Replacement Ballast (Mfg# R175267)

Lifegard Aquatics UV Sterilizer Parts 15/25/40 Watt Replacement Ballast (Mfg# R175267)

"Ballasts, quartz bulbs, and quartz sleeves for Lifegard Aquatics Ultraviolet Sterilizer Modules help make changes easy. Choose the right parts and accessories to keep your aquarium clean and healthy." more

$49.99

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(275,000+)
"Hydor Usa Inc-Mini Aquarium Heater 15 Watt"

"Hydor Usa Inc-Mini Aquarium Heater 15 Watt"

"MINI AQUARIUM HEATERHelps to increase water temperature of mini aquariums by a few degrees, compared to room temperature.For 5-10 gallon aquariums.UPC : 841421004747Size : 15 WATTLength : 2Width : 3.25Height : 8.25Product Type : Aquatics - Heaters /... more

$9.99

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Hagen Elite Elite Radiant Heater for Aquariums: 100 Watt - Aquariums up to 20 Gallons - (8 Long) #A

Hagen Elite Elite Radiant Heater for Aquariums: 100 Watt - Aquariums up to 20 Gallons - (8 Long) #A

Hagen Elite Elite Radiant Heater for Aquariums: 100 Watt - Aquariums up to 20 Gallons - (8 Long) #A735 The Elite Radiant Compact Heater maintains aquarium temperature. It is ideal for fresh or salt water aquariums, and features a Sure-Grip rim... more

$6.99

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Aqueon Aqueon Submersible Aquarium Heaters: 150 Watts - (3.7 L x 1.5 W x 15 H) #6102 - Aquarium Heat

Aqueon Aqueon Submersible Aquarium Heaters: 150 Watts - (3.7 L x 1.5 W x 15 H) #6102 - Aquarium Heat

Aqueon Aqueon Submersible Aquarium Heaters: 150 Watts - (3.7 L x 1.5 W x 15 H) #6102 Aqueon Submersible Aquarium Heater is a completely submersible aquarium heater with precise temperature setting. Featuring a shatter resistant construction, this... more

$22.50

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Tetra Tetra HT Submersible Aquarium Heater: HT40 Heater - 150 Watt - (Aquariums 30-40 Gallons) #2646

Tetra Tetra HT Submersible Aquarium Heater: HT40 Heater - 150 Watt - (Aquariums 30-40 Gallons) #2646

Tetra Tetra HT Submersible Aquarium Heater: HT40 Heater - 150 Watt - (Aquariums 30-40 Gallons) #26462 Tetra HT-Series Submersible Heaters are created especially for ease of use in your aquarium. An electronic thermostat automatically adjusts the heat... more

$18.34

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M 50-Watt Submersible Heater, Built in reflective technology mirrors the surrounding colors, making the heater blend into your aquarium environment By Fluval

M 50-Watt Submersible Heater, Built in reflective technology mirrors the surrounding colors, making the heater blend into your aquarium environment By Fluval

"Thank you for shopping at Appletree. The M Submersible Aquarium Heater’s quality manufacturing utilizes superior components and construction. The M 50 Watts Electronic Heater is ideal for use in aquariums up to 15 gallons and has a temperature range... more

$26.99

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Penn Plax Aquarium Heater Fully Submersible Within 1 Degree of Accuracy 75 Watt Heats Up to 15 Gallon Tank

Penn Plax Aquarium Heater Fully Submersible Within 1 Degree of Accuracy 75 Watt Heats Up to 15 Gallon Tank

The Penn-Plax Cascade Heat Aquarium Heater accurately maintains the desired temperature in your tank within 1 degree of accuracy. This heater can be manually set to any temperature however, comes preset to 76 degrees making them ready to use for most... more

$38.05

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"Hydor Submersible Aquarium Heater 300 Watt - 15.5"" Long - (53 - 80 Gallons)"

"Hydor Submersible Aquarium Heater 300 Watt - 15.5"" Long - (53 - 80 Gallons)"

"Hydor Submersible Aquarium Heater 300 Watt - 15.5"" Long - (53 - 80 Gallons)" more

$31.50

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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 400 Watt - 15.5"" Long - (80 - 105 Gallons)" more

$32.92

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