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Unlike the temperatures that our seas and oceans produce, stand-alone aquariums are unable to regulate the kind of consistent temperature that fish and other animals need to survive. Aquarium heaters are essential to performing this task and are required for ANY small or large-scale aquarium setup.

Our heaters are available in a range of different wattages, styles and sizes. Look through our range and find the right heater for your aquarium installation.
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Juwel Digital Thermometer 2.0
Item # JWL170

Juwel Digital Thermometer 2.0

(85702)
  • With the large, easy-to-read digital display of the JUWEL Digital Thermometer, you can easily keep an eye on the temperature in your aquarium.
  • In a temperature range from 16 to 42C, ...
More info...

Your Price AU$30.90
Zoo Med BettaTherm Submersible Aquarium Heater 7.5 watt
Item # ZM366

Zoo Med BettaTherm Submersible Aquarium Heater 7.5 watt

for Betta Fish (Siamese Fighter fish) Zoo Med
  • Note: This is the 240volt product with an Australian plug
  • Keeps your fish warm!
  • 8.5cm dia disk shape.
  • Convenient small round sized heater. ...More info...

    Your Price AU$41.90
    Earn 418 points
Marina Betta Aquarium Heater 8watt
Item # MRN25

Marina Betta Aquarium Heater 8watt

Suitable for 2-5 litre tanks (11182) Hagen

Marina Betta Heater is an automatic, submersible heater that creates ideal water conditions for bettas to thrive in. The exterior is made of durable polymer, which is more resilient than ...More info...


Your Price AU$23.50
Earn 235 points
Kedida Handheld Digital Salinity/Temperature Waterproof Meter CT-3080 for freshwater use
Item # TAS-CT-3080

Kedida Handheld Digital Salinity/Temperature Waterproof Meter CT-3080 for freshwater use

Digital Pen Meter measures up to 0.1% salinity (Note 4 x 1.5 V battery LR44 not Included) *** ON SPECIAL *** Hagen

Features

  • Range: 0 to 1000 mg/L.
  • LCD with indicates both mg/Land temp.
  • Pen type digital TDS meter, all in one, salt electrode included, easy to ...
More info...
Out of stock
Your Price AU$42.50
(Was AU$69.95 you save AU$27.45
Earn 425 points
AnyControl Digital Temperature Thermostat RC-112
Item # GPS-AC-112

AnyControl Digital Temperature Thermostat RC-112

Suitable for aquariums, terrariums, ponds
  • To maintain constant temperature
  • LED display, friendly interface, easy to read, operate and set the parameters
  • Can choose COOL or HEAT mode
  • Can switch between ...
More info...
Out of stock
Your Price AU$54.95
Digital Aquarium Thermometer ST-02
Item # AM26C

Digital Aquarium Thermometer ST-02

Measures two temperatures with probe
  • In and out dual-way temperature measuring.
  • Large 2cm high readout
  • Clock function.
  • Centigrade and Fahrenheit.
  • Wide application uses such as ...
More info...

Your Price AU$16.00
Earn 160 points
Aquarium Spray Bar/Tubing Clip Holder for 15-16mm tubing
Item # GS03

Aquarium Spray Bar/Tubing Clip Holder for 15-16mm tubing

Colour may vary
  • Clip inner diameter: 15mm
  • Size: 37mm dia sucker/20mm clip

Your Price AU$0.90
Earn 9 points
Aquarium Heater Clip Holder 35mm dia sucker/28mm clip
Item # GS05

Aquarium Heater Clip Holder 35mm dia sucker/28mm clip

Colour may vary
  • Clip inner diameter: 21mm

Your Price AU$0.90
Earn 9 points
Aquarium Heater Clip Holder 35mm dia sucker/28mm clip Black
Item # GS05a

Aquarium Heater Clip Holder 35mm dia sucker/28mm clip Black

  • Clip inner diameter: 21mm

Your Price AU$0.90
Earn 9 points
Aqua Zonic Eco Aquarium Heater 25w Mini
Item # ECO00

Aqua Zonic Eco Aquarium Heater 25w Mini

  • Heat resistant glass
  • Accurate temperature
  • Energy saving
  • Superior design
  • Fresh & salt water
  • Economical pricing
  • Range: ...
More info...

 
Your Price AU$20.80
Earn 208 points
Aqua Zonic Eco Aquarium Heater 50w
Item # ECO01

Aqua Zonic Eco Aquarium Heater 50w

  • Heat resistant glass
  • Accurate temperature
  • Energy saving
  • Superior design
  • Fresh & salt water
  • Economical pricing
  • Range: 17-35 ...
More info...

 
Your Price AU$22.70
Earn 227 points
Aqua Zonic Eco Aquarium Heater 100w
Item # ECO02

Aqua Zonic Eco Aquarium Heater 100w

  • Heat resistant glass
  • Accurate temperature
  • Energy saving
  • Superior design
  • Fresh & salt water
  • Economical pricing
  • Range: 17-35 ...
More info...

 
Your Price AU$24.60
Earn 246 points
Aqua Zonic Eco Aquarium Heater 150w
Item # ECO03

Aqua Zonic Eco Aquarium Heater 150w

  • Heat resistant glass
  • Accurate temperature
  • Energy saving
  • Superior design
  • Fresh & salt water
  • Economical pricing
  • Range: 17-35 ...
More info...
New stock on order
Your Price AU$27.10
Earn 271 points
Aqua Zonic Eco Aquarium Heater 200w
Item # ECO04

Aqua Zonic Eco Aquarium Heater 200w

  • Heat resistant glass
  • Accurate temperature
  • Energy saving
  • Superior design
  • Fresh & salt water
  • Economical pricing
  • Range: 17-35 ...
More info...

 
Your Price AU$28.75
Earn 287 points
Aqua Zonic Eco Aquarium Heater 300w
Item # ECO05

Aqua Zonic Eco Aquarium Heater 300w

  • Heat resistant glass
  • Accurate temperature
  • Energy saving
  • Superior design
  • Fresh & salt water
  • Economical pricing
  • Range: 17-35 ...
More info...

Your Price AU$30.00
Earn 300 points
Item # 121475

Aquael Ultra Heater Professional 100watt

Ideal for aquariums and terrariums with turtles Aquael
  • Small size 20.8cm x 9mm thick (heating element)
  • Easy to use and maintain
  • Undergoes computer assisted testing
  • Electronic, precise thermostat
  • Intended for ...
More info...

Your Price AU$74.95
Earn 750 points
Item # 121476

Aquael Ultra Heater Professional 150watt

Ideal for aquariums and terrariums with turtles Aquael
  • Small size 27.4cm x 9mm thick (heating element)
  • Easy to use and maintain
  • Undergoes computer assisted testing
  • Electronic, precise thermostat
  • Intended for ...
More info...

Your Price AU$81.65
Earn 816 points
Analog Submersible Aquarium Thermometer
Item # TS-Therm-AL

Analog Submersible Aquarium Thermometer

No Batteries needed

  • Size: Panel 6.5cm x 4.2cm
  • Place inside tank with suction cup
  • Durable
  • Easy to read
  • Not only good for fish tank can be used outside tank in your home/workshop ...
More info...
Out of stock
Your Price AU$5.95
Earn 60 points
LCD Display Digital Aquarium Thermometer Stick on with Alarm
Item # KT-502

LCD Display Digital Aquarium Thermometer Stick on with Alarm

External stick on shows internal temp. Battery included
  • Stick on outside of tank and will show internal temperature.
  • Highest/Lowest Temperature Alarm function
  • LED alarm indicator light with audible sound.  Note only ...
More info...

Your Price AU$19.95
Earn 200 points
LCD Display Digital Aquarium Thermometer Submersible
Item # TASDIGISub

LCD Display Digital Aquarium Thermometer Submersible

Note: Batteries sold separately
  • LCD screen, easy reading
  • High quality suction base, easy to install
  • Compact design for discrete use
  • Need to submerge thermometer in water
  • Temperature ...
More info...

Your Price AU$7.50
Earn 75 points
LCD Display Digital Aquarium Thermometer With probe
Item # TASDIGISQP

LCD Display Digital Aquarium Thermometer With probe

Note: Batteries sold separately

Digital LCD Thermometer For Aquariums, Freezers. Modelling simple, elegant, LCD panels inline connections, moisture-resistant, strong anti-interference, applies to refrigerated cabinet ...More info...


Your Price AU$4.25
Earn 42 points
LCD Display Digital Aquarium Thermometer With probe
Item # TASDIGIP

LCD Display Digital Aquarium Thermometer With probe

Batteries Included
  • Compact design with mounting suction caps.
  • Large 25mm high display.
  • Centigrade and Fahrenheit.
  • Temperature range: -50C to +70C.
  • Accuracy 1C ...
More info...

Your Price AU$7.95
Earn 80 points
biOrb Heater Stand
Item # BOB12

biOrb Heater Stand

Suitable for Heaters 20cm or less Reef One
  • Designed for Biorb aquariums.
  • Safely mount heaters to the side of your BiOrb
  • Suitable ...
More info...

 
Your Price AU$14.00
Fluval P10 Pre-set Submersible Heater 10W 10L
Item # MRN23

Fluval P10 Pre-set Submersible Heater 10W 10L

Fully submersible heating (A743) Fluval

Whether in nature or in an aquarium, fish are sensitive to temperature fluctuations and can suffer from immune system shock if sudden shifts occur. Investing in a reliable heating system that p ...More info...


 
Your Price AU$33.95
Earn 339 points
Fluval P25 Pre-set Submersible Heater 25W 25L
Item # MRN24

Fluval P25 Pre-set Submersible Heater 25W 25L

Fully submersible heating (A744) Fluval

Whether in nature or in an aquarium, fish are sensitive to temperature fluctuations and can suffer from immune system shock if sudden shifts occur. Investing in a reliable heating system that p ...More info...


Your Price AU$38.95
Earn 389 points
Hydor External Inline Heater 200w 16mm
Item # HYD26

Hydor External Inline Heater 200w 16mm

For 100-200L Aquariums (T08116)

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 ...More info...


Your Price AU$135.00
Earn 1350 points
Hydor External Inline Heater 300w 16mm
Item # HYD27

Hydor External Inline Heater 300w 16mm

For 200-300L Aquariums (T08202)

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 ...More info...


Your Price AU$145.00
Earn 1450 points
Hydor Theo Aquarium Heater 25w
Item # HYD20

Hydor Theo Aquarium Heater 25w

For 10-25L Aquariums (T11706)

Aquarium heater with all the necessary features for safe and precise temperature maintenance of the water in your tank. The exclusive technology and the high quality of the components guarantee a l ...More info...


Your Price AU$49.95
Earn 499 points
Hydor Theo Aquarium Heater 50w
Item # HYD21

Hydor Theo Aquarium Heater 50w

For 20-50L Aquariums (T11107)

Aquarium heater with all the necessary features for safe and precise temperature maintenance of the water in your tank. The exclusive technology and the high quality of the components guarantee a l ...More info...


 
Your Price AU$53.40
Earn 534 points
Hydor Theo Aquarium Heater 100w
Item # HYD22

Hydor Theo Aquarium Heater 100w

For 50-100L Aquariums (T11207)

Aquarium heater with all the necessary features for safe and precise temperature maintenance of the water in your tank. The exclusive technology and the high quality of the components guarantee a l ...More info...


Your Price AU$59.35
Earn 594 points
Hydor Theo Aquarium Heater 150w
Item # HYD23

Hydor Theo Aquarium Heater 150w

For 90-150L Aquariums (T11606)

Aquarium heater with all the necessary features for safe and precise temperature maintenance of the water in your tank. The exclusive technology and the high quality of the components guarantee a l ...More info...


Your Price AU$67.25
Earn 672 points
Hydor Theo Aquarium Heater 200w
Item # HYD24

Hydor Theo Aquarium Heater 200w

For 100-200L Aquariums (T11307)

Aquarium heater with all the necessary features for safe and precise temperature maintenance of the water in your tank. The exclusive technology and the high quality of the components guarantee a l ...More info...


Your Price AU$73.20
Earn 732 points
Hydor Theo Aquarium Heater 300w
Item # HYD25

Hydor Theo Aquarium Heater 300w

For 200-300L Aquariums (T11407)

Aquarium heater with all the necessary features for safe and precise temperature maintenance of the water in your tank. The exclusive technology and the high quality of the components guarantee a l ...More info...


 
Your Price AU$77.15
Earn 771 points
Juwel Aquarium Heater 50watt
Item # JWL200

Juwel Aquarium Heater 50watt

(85600)
  • The JUWEL heater safely and reliably ensures the correct temperature in your aquarium. Depending on room temperature and aquarium size, your JUWEL heater will achieve a water temperature of ...
More info...

Your Price AU$57.60
Earn 576 points
Juwel Aqua Heat 100 100watt aquarium heater
Item # JWL201

Juwel Aqua Heat 100 100watt aquarium heater

(85805)
  • The JUWEL heater safely and reliably ensures the correct temperature in your aquarium. Depending on room temperature and aquarium size, your JUWEL heater will achieve a water temperature of ...
More info...

Your Price AU$62.85
Earn 628 points
Juwel Aqua Heat 200 200watt aquarium heater
Item # JWL202

Juwel Aqua Heat 200 200watt aquarium heater

(85610)
  • The JUWEL heater safely and reliably ensures the correct temperature in your aquarium. Depending on room temperature and aquarium size, your JUWEL heater will achieve a water temperature of ...
More info...

Your Price AU$72.55
Earn 725 points
Juwel Aqua Heat 300 300watt aquarium heater
Item # JWL203

Juwel Aqua Heat 300 300watt aquarium heater

(85615)
  • The JUWEL heater safely and reliably ensures the correct temperature in your aquarium. Depending on room temperature and aquarium size, your JUWEL heater will achieve a water temperature of ...
More info...

 
Your Price AU$78.30
Earn 783 points
Marina Aqua Minder
Item # TH10

Marina Aqua Minder

Aquarium Monitoring Unit Hagen
  • Marina Aqua-Minder
  • Adjustable Aquarium Monitoring Unit
  • The Marina Aquarium monitoring unit has been designed to provide all aquariums with continuous monitoring as ...
More info...
Out of stock
Your Price AU$41.80
Earn 399 points
Marina Submersible Compact Aquarium Heater C17
Item # MRN11

Marina Submersible Compact Aquarium Heater C17

Suitable for up to 15 litre tank *** ON SPECIAL DISCOUNTED *** Hagen
  • Unbreakable - exterior is made of a tough polymer instead of glass.
  • Safe for plastic or glass aquariums.
  • Suitable for freshwater and saltwater aquariums. ...
More info...
Out of stock
Your Price AU$29.95
(Was AU$37.35 you save AU$7.40
Earn 300 points
Marina Submersible Compact Aquarium Heater 25w Mini
Item # MRN15

Marina Submersible Compact Aquarium Heater 25w Mini

Suitable for up to 20 litre tank (11230) Hagen

Small yet powerful, the mini 25-watt Marina Submersible Aquarium Heater provides reliable heating for fresh or saltwater aquariums up to 20 litres (5.5 US gal) aquariums.

The heater includes ...More info...


Your Price AU$31.30
Earn 313 points
Marina Submersible Compact Aquarium Heater 50w Mini
Item # MRN16

Marina Submersible Compact Aquarium Heater 50w Mini

Suitable for up to 38 litre tank (11231) Hagen

Small yet powerful, the mini 50-watt Marina Submersible Aquarium Heater provides reliable heating for fresh or saltwater aquariums up to 38 litres (10 US gal) aquariums.

The heater includes m ...More info...


Your Price AU$32.90
Earn 329 points
Marina Submersible Aquarium Heater 100w
Item # MRN18

Marina Submersible Aquarium Heater 100w

Suitable for up to 100 litre tank Hagen

Powerful 100-watt Marina Submersible Aquarium Heater provides reliable heating for fresh or saltwater aquariums up to 100 litres (30 US gal) aquariums.

The heater includes many practical feat ...More info...


Your Price AU$36.60
Earn 366 points
Marina Submersible Aquarium Heater 150w
Item # MRN19

Marina Submersible Aquarium Heater 150w

Suitable for up to 150 litre tank Hagen

Powerful 150-watt Marina Submersible Aquarium Heater provides reliable heating for fresh or saltwater aquariums up to 150 litres (40 US gal) aquariums.

The heater includes many practical feat ...More info...


Your Price AU$41.20
Earn 375 points
Marina Submersible Aquarium Heater 200w
Item # MRN20

Marina Submersible Aquarium Heater 200w

Suitable for up to 200 litre tank Hagen

Powerful 200-watt Marina Submersible Aquarium Heater provides reliable heating for fresh or saltwater aquariums up to 200 litres (55 US gal) aquariums.

The heater includes many practical feat ...More info...


Your Price AU$42.75
Earn 427 points
Marina Submersible Aquarium Heater 300w
Item # MRN21

Marina Submersible Aquarium Heater 300w

Suitable for up to 300 litre tank (11236) Hagen

Powerful 300-watt Marina Submersible Aquarium Heater provides reliable heating for fresh or saltwater aquariums up to 300 litres (80 US gal) aquariums.

The heater includes many practical feat ...More info...


Your Price AU$39.95
Earn 400 points
Orca Aquarium Heater CB-300 25W
Item # HE-10

Orca Aquarium Heater CB-300 25W

For tanks up to 30L Orca
  • Completely submersible heater
  • Safe, efficient and reliable
  • Suitable for both fresh and saltwater tanks
  • Adjustable temperature control
  • Power light ...
More info...

Your Price AU$26.05
Earn 260 points
Orca Aquarium Heater CB-300 50W
Item # HE-11

Orca Aquarium Heater CB-300 50W

For tanks up to 50L Orca
  • Completely submersible heater
  • Safe, efficient and reliable
  • Suitable for both fresh and saltwater tanks
  • Adjustable temperature control
  • Power light ...
More info...

Your Price AU$29.95
Earn 300 points
Orca Aquarium Heater CB-300 100W
Item # HE-12

Orca Aquarium Heater CB-300 100W

For tanks up to 100L Orca
  • Completely submersible heater
  • Safe, efficient and reliable
  • Suitable for both fresh and saltwater tanks
  • Adjustable temperature control
  • Power light ...
More info...

 
Your Price AU$28.55
Earn 286 points
Orca Aquarium Heater CB-300 150W
Item # HE-13

Orca Aquarium Heater CB-300 150W

For tanks up to 150L Orca
  • Completely submersible heater
  • Safe, efficient and reliable
  • Suitable for both fresh and saltwater tanks
  • Adjustable temperature control
  • Power light ...
More info...

 
Your Price AU$29.85
Earn 298 points
Orca Aquarium Heater CB-300 200W
Item # HE-14

Orca Aquarium Heater CB-300 200W

For tanks up to 200L Orca
  • Completely submersible heater
  • Safe, efficient and reliable
  • Suitable for both fresh and saltwater tanks
  • Adjustable temperature control
  • Power light ...
More info...

Your Price AU$31.20
Earn 312 points
Fish tank heaters ranging from 50 to 300 watts for your aquarium.
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