Temperature Control

Items 1 to 48 of 105 total

Each species of fish has specific needs when it comes to temperature. For fish keepers, getting the right aquarium temperature is a breeze when you use one of these reliable temperature control products from Big Al’s Pets. Each one is designed to take the guesswork out of temperature regulation in your aquarium. You’ll be able to quickly and easily create settings for how warm or cool your fishes’ water needs to be. We carry the latest precision devices to provide you with more control over your aquarium water temperature while also helping to maintain optimal living conditions for your fish.

Our selection of aquarium temperature control products includes a number of devices that any fish keeper may need for their aquarium. Our thermometers provide you with accurate readings, while our heaters and chillers make sure that your water temperature is maintained with accuracy and stability. We also carry helpful accessories for setting up your aquarium temperature control devices, including magnetic suction cups and brackets. At Big Al’s Pets, you can get everything you need for your aquarium with a convenient, one-stop shopping experience.
  • Penn Plax Therma-Temp Thermometers
    Clear, accurate live temperature readings of your aquarium water's temperature, allowing the aquarium hobbyist to fine tune their heating system to provide the appropriate water temperature for their fish.

    Price From: USD 1.79

    Price From: USD 1.79

  • Fluval Fluval E Advanced Electronic Heaters
    The most technologically advanced heaters available, the Fluval E series advanced electronic aquarium heater with VueTech technology delivers piece of mind by continuously displaying real-time water temperature.With an advanced digital microprocessor.

    Price From: USD 52.99

    Price From: USD 52.99

  • Aqueon Aquatic Flat Heaters
    • Ideal for small desktop aquariums up to 3 gallons
    • Energy-efficient heater consumes a mere 7.5 watts!
    • Easy to install with submersible design and suction cups
    • Secures to the sides or bottom of your aquarium

    Price From: USD 7.55

    Price From: USD 7.55

  • Aqueon Aquatic Flat Heater - 7.5 W
    • Ideal for small desktop aquariums up to 3 gallons
    • Energy-efficient heater consumes a mere 7.5 watts!
    • Easy to install with submersible design and suction cups
    • Secures to the sides or bottom of your aquarium

    Regular Price: USD 8.99

    Sale Price USD 7.55

    Regular Price: USD 8.99

    Sale Price USD 7.55

  • Aqueon Aquatic Flat Heater - 15 W
    • Ideal for small desktop aquariums up to 10 gallons
    • Energy-efficient heater consumes a mere 15 watts!
    • Easy to install with submersible design and suction cups
    • Secures to the sides or bottom of your aquarium

    Regular Price: USD 10.99

    Sale Price USD 9.00

    Regular Price: USD 10.99

    Sale Price USD 9.00

  • Tom Aquatics Aquarium Digital Temperature Alert Thermometers
    The Tom Aquarium Temp Alert Thermometers display both aquarium water temperature and room temperature simultaneously. They features 4 programmable alerts, with both audible and LED alarms. Suitable for both freshwater and saltwater applications.

    Price From: USD 17.89

    Price From: USD 17.89

  • Coralife Aquarium Chillers
    • Provides accurate temperature control with quality construction
    • Keeps water within +/- 2 degrees F of set temperature
    • Titanium heat exchanger will not corrode over time
    • Easy to use, programmable LED display
    • Includes 1 year limited manufacturer's warranty

    Price From: USD 429.99

    Price From: USD 429.99

  • Hydor Slim Heaters for Micro Tanks & Mini Aquariums
    • For aquariums with fish similar to Bettas or Guppies
    • Used on glass or acrylic miniature aquariums
    • Suitable to use in a 2 or 5 gallon aquarium

    Price From: USD 7.99

    Price From: USD 7.99

  • Hydor Theo Submersible Heater
    THEO aquarium heater has all the necessary features for safe and precise temperature maintance of the water in your tank. The exclusive technology and the high quality of the components guarantee a long lasting product.

    Price From: USD 18.12

    Price From: USD 18.12

  • Eheim Jager TruTemp Submersible Heaters
    An ultra-modern thermal device using the best available technology. The temperature can be precisely adjusted from 18-34°C and readjusted if required. The control accuracy is +/- 0.5 degrees F, and the heat is controlled to a constant temperature.

    Price From: USD 17.99

    Price From: USD 17.99

  • Cobalt Aquatics Neo-Therm Heaters
    • Modern, super flat design
    • Easy to set "one touch" system
    • Accurate electronic thermostat (±0.5 degrees F)
    • LEDs display set and actual temperature
    • Shatterproof outer casing protects electrical components

    Price From: USD 56.99

    Price From: USD 56.99

  • Cobalt Aquatics Accu-Therm Heaters
    • Advanced, fully submersible heater
    • Equally capable in freshwater and saltwater environments
    • Computer-tested accurate to ± 2 ° Fahrenheit
    • Features an easily calibrated thermostat and Triac circuit
    • Ceramic radiator delivers even heat distribution

    Price From: USD 25.96

    Price From: USD 25.96

  • Cobalt Aquatics Mini-Therm Heaters
    • Compact, fully submersible heater for small aquariums
    • Equally capable in freshwater and saltwater environments
    • Constant operation eliminates the need for adjustments
    • Ceramic radiator delivers even heat distribution
    • Shatterproof polymer casing protects aquarium and heater

    Price From: USD 13.94

    Price From: USD 13.94

  • Aqueon Pro Submersible Heaters
    Aqueon Pro Heaters are accurate, reliable, durable, and easy to use. They are constructed using a shatterproof and nearly indestructible outer shell, and feature a durable aluminum core for strength and even heat distribution. Fully submersible.

    Price From: USD 28.43

    Price From: USD 28.43

  • Zoo Med Digital Aquarium Thermometer
    • Simple to read with luxury LCD Display
    • Completely submersible & waterproof
    • Ideal for fresh & salt water aquariums

    Regular Price: USD 6.99

    Sale Price USD 5.24

    Regular Price: USD 6.99

    Sale Price USD 5.24

  • Cobalt Aquatics Neo-Therm Dual Heater - 300 W
    • Modern, super flat design
    • Easy to set "one touch" system
    • Accurate electronic thermostat (±0.5 degrees F)
    • LEDs display set and actual temperature
    • Shatterproof outer casing protects electrical components
    USD 119.23
    USD 119.23

    Out of stock

  • Eheim Jager TruTemp Submersible Heater - 75 W
    • Features a shatterproof glass construction
    • TruTemp dial adjusts from 18° to 34° C (65° to 93° F)
    • Thermo safety control enables "running dry" protection
    • On/off indicator light verifies heater functions
    • Includes mounting bracket and suction cups

    Regular Price: USD 24.99

    Sale Price USD 19.99

    Regular Price: USD 24.99

    Sale Price USD 19.99

  • EcoPlus Aqua Heat Titanium Reservoir & Aquarium Heater - 300 W
    Description Coming Soon!

    Regular Price: USD 37.99

    Sale Price USD 31.55

    Regular Price: USD 37.99

    Sale Price USD 31.55

  • EcoPlus Aqua Heat Titanium Reservoir & Aquarium Heater - 200 W
    Description Coming Soon!

    Regular Price: USD 35.49

    Sale Price USD 28.68

    Regular Price: USD 35.49

    Sale Price USD 28.68

  • EcoPlus Water Chillers
    The EcoPlus Water Chiller is a high performance water chiller suitable for usage in freshwater aquariums, saltwater aquariums, reservoirs, and hydroponic systems, designed for strength and durability.

    Price From: USD 362.98

    Price From: USD 362.98

  • EcoPlus Commercial Grade Water Chillers
    The EcoPlus Commercial Grade Water Chiller is a commercial-grade, heavy duty water chiller suitable for freshwater aquariums, saltwater aquariums, and hydroponic systems, crafted for durability, power, and reliability.

    Price From: USD 1,079.99

    Price From: USD 1,079.99

    Out of stock

  • EcoPlus Chiller Fitting Kits
    Description Coming Soon!

    Price From: USD 6.99

    Price From: USD 6.99

  • EcoPlus Aqua Heat Titanium Reservoir and Aquarium Heaters
    Description Coming Soon!

    Price From: USD 28.68

    Price From: USD 28.68

  • Hydor Slim Heater for Micro Tanks & Mini Aquariums - 4 W
    Description Coming Soon!

    Regular Price: USD 9.99

    Sale Price USD 7.99

    Regular Price: USD 9.99

    Sale Price USD 7.99

  • EcoPlus Chiller Fitting Kit - 1/10 HP
    Description Coming Soon!

    Regular Price: USD 7.99

    Sale Price USD 6.99

    Regular Price: USD 7.99

    Sale Price USD 6.99

  • Seapora Mini Desktop Heater - 30 W
    Description Coming Soon!
    USD 9.99
    USD 9.99
  • Seapora Digital Thermometer with Probe
    Description Coming Soon!

    Regular Price: USD 8.99

    Sale Price USD 6.99

    Regular Price: USD 8.99

    Sale Price USD 6.99

  • EcoPlus Chiller Fitting Kit - 1/4 HP
    Description Coming Soon!

    Regular Price: USD 10.49

    Sale Price USD 7.99

    Regular Price: USD 10.49

    Sale Price USD 7.99

  • EcoPlus Commercial Grade Chiller Fitting Kit
    Description Coming Soon!

    Regular Price: USD 17.99

    Sale Price USD 11.99

    Regular Price: USD 17.99

    Sale Price USD 11.99

    Out of stock

  • Aqueon Preset Heater - 150 W
    • Pre-calibrated to an accurate 78 degrees F
    • Appropriate for most tropical fish and fully submersible
    • Made using shatter-resistant quartz glass for added durability
    • Automatic shut-off feature prevents overheating
    • Backed by a 1 Year Manufacturer's Warranty

    Regular Price: USD 17.99

    Sale Price USD 16.08

    Regular Price: USD 17.99

    Sale Price USD 16.08

  • Eheim Jager TruTemp Submersible Heater - 125 W
    • Features a shatterproof glass construction
    • TruTemp dial adjusts from 18° to 34° C (65° to 93° F)
    • Thermo safety control enables "running dry" protection
    • On/off indicator light verifies heater functions
    • Includes mounting bracket and suction cups

    Regular Price: USD 28.99

    Sale Price USD 19.58

    Regular Price: USD 28.99

    Sale Price USD 19.58

  • Aqueon Preset Heaters
    • Pre-calibrated to an accurate 78&‌deg; F, accurate to 1&‌deg; degrees fahrenheit and require no manual adjustment. Appropriate for most tropical fish, these fully submersible heaters are made using shatter-resistant quartz glass for added durability. A red LED lightr indicates that the heater is active, and an automatic shut-off feature works to prevent overheating. Aqueon Preset Heaters are available in 50-Watt, 100-Watt, 150-Watt and 200-Watt models, and come backed by a 1 Year Manufacture
    • Appropriate for most tropical fish and fully submersible
    • Made using shatter-resistant quartz glass for added durability
    • Automatic shut-off feature prevents overheating
    • Backed by a 1 Year Manufacturer's Warranty

    Price From: USD 8.78

    Price From: USD 8.78

  • Aqueon Preset Heater - 50 W
    • Pre-calibrated to an accurate 78&‌deg; F, accurate to 1&‌deg; degrees fahrenheit and require no manual adjustment. Appropriate for most tropical fish, these fully submersible heaters are made using shatter-resistant quartz glass for added durability. A red LED lightr indicates that the heater is active, and an automatic shut-off feature works to prevent overheating. Aqueon Preset Heaters are available in 50-Watt, 100-Watt, 150-Watt and 200-Watt models, and come backed by a 1 Year Manufacture
    • Appropriate for most tropical fish and fully submersible
    • Made using shatter-resistant quartz glass for added durability
    • Automatic shut-off feature prevents overheating
    • Backed by a 1 Year Manufacturer's Warranty

    Regular Price: USD 11.87

    Sale Price USD 8.78

    Regular Price: USD 11.87

    Sale Price USD 8.78

  • Aqueon Preset Heater - 100 W
    • Pre-calibrated to an accurate 78&‌deg; F, accurate to 1&‌deg; degrees fahrenheit and require no manual adjustment. Appropriate for most tropical fish, these fully submersible heaters are made using shatter-resistant quartz glass for added durability. A red LED lightr indicates that the heater is active, and an automatic shut-off feature works to prevent overheating. Aqueon Preset Heaters are available in 50-Watt, 100-Watt, 150-Watt and 200-Watt models, and come backed by a 1 Year Manufacture
    • Appropriate for most tropical fish and fully submersible
    • Made using shatter-resistant quartz glass for added durability
    • Automatic shut-off feature prevents overheating
    • Backed by a 1 Year Manufacturer's Warranty

    Regular Price: USD 14.99

    Sale Price USD 11.96

    Regular Price: USD 14.99

    Sale Price USD 11.96

  • EcoPlus Water Chiller - 1/4 HP
    • Suitable for fresh or saltwater aquariums and much more
    • Equipped with a high performance titanium heat exchanger
    • Durable and efficient compressor for added dependability
    • Includes a micro computer with built in digital LCD display
    • Energy efficient design keeps your power bill in control

    Regular Price: USD 512.99

    Sale Price USD 440.02

    Regular Price: USD 512.99

    Sale Price USD 440.02

  • EcoPlus Water Chiller - 1/2 HP
    • Suitable for fresh or saltwater aquariums and much more
    • Equipped with a high performance titanium heat exchanger
    • Durable and efficient compressor for added dependability
    • Includes a micro computer with built in digital LCD display
    • Energy efficient design keeps your power bill in control

    Regular Price: USD 706.99

    Sale Price USD 651.98

    Regular Price: USD 706.99

    Sale Price USD 651.98

    Out of stock

  • EcoPlus Water Chiller - 1/10 HP
    • Suitable for fresh or saltwater aquariums and much more
    • Equipped with a high performance titanium heat exchanger
    • Durable and efficient compressor for added dependability
    • Includes a micro computer with built in digital LCD display
    • Energy efficient design keeps your power bill in control

    Regular Price: USD 423.66

    Sale Price USD 362.98

    Regular Price: USD 423.66

    Sale Price USD 362.98

  • EcoPlus Commercial Grade Water Chiller - 1/2 HP
    • Suitable for fresh or saltwater aquariums and much more
    • Equipped with a commercial grade titanium heat exchanger
    • Imported compressor is extremely efficient and dependable
    • Includes an LCD display and 30 ft remote control for ease of use
    • Packaged with two fittings to make plumbing the chiller easy
    USD 1,079.99
    USD 1,079.99

    Out of stock

  • EcoPlus Commercial Grade Water Chiller - 1 HP
    • Suitable for fresh or saltwater aquariums and much more
    • Equipped with a commercial grade titanium heat exchanger
    • Imported compressor is extremely efficient and dependable
    • Includes an LCD display and 30 ft remote control for ease of use
    • Packaged with two fittings to make plumbing the chiller easy
    USD 1,227.99
    USD 1,227.99

    Out of stock

  • EcoPlus Commercial Grade Water Chiller - 1 1/2 HP
    • Suitable for fresh or saltwater aquariums and much more
    • Equipped with a commercial grade titanium heat exchanger
    • Imported compressor is extremely efficient and dependable
    • Includes an LCD display and 30 ft remote control for ease of use
    • Packaged with two fittings to make plumbing the chiller easy

    Regular Price: USD 1,449.99

    Sale Price USD 1,229.99

    Regular Price: USD 1,449.99

    Sale Price USD 1,229.99

    Out of stock

  • Aqueon Preset Heater - 200 W
    • Pre-calibrated to an accurate 78 degrees F
    • Appropriate for most tropical fish and fully submersible
    • Made using shatter-resistant quartz glass for added durability
    • Automatic shut-off feature prevents overheating
    • Backed by a 1 Year Manufacturer's Warranty

    Regular Price: USD 19.99

    Sale Price USD 15.96

    Regular Price: USD 19.99

    Sale Price USD 15.96

  • Aqueon Submersible Glass Aquarium Heater - 150 W
    Description Coming Soon!
    USD 33.49
    USD 33.49
  • Aqueon Pro Submersible Heater - 50 W
    Aqueon Pro Heaters are accurate, reliable, durable, and easy to use. They are constructed using a shatterproof and nearly indestructible outer shell, and feature a durable aluminum core for strength and even heat distribution. Fully submersible.

    Regular Price: USD 32.99

    Sale Price USD 28.43

    Regular Price: USD 32.99

    Sale Price USD 28.43

  • Hagen Heater Holder/Hose Bracket
    Plastic Heater Holder for Thermal Compact / Thermal Pre-set. Also for Fluval 104 and 204

    Regular Price: USD 6.93

    Sale Price USD 2.73

    Regular Price: USD 6.93

    Sale Price USD 2.73

  • Marina Suction Cups for Thermometers/Airline Tubing - Small - 2 pk
    Marina Small Thermometer Suction Cups can be used for securing thermometers and airline tubing within your aquarium environment.

    Regular Price: USD 1.99

    Sale Price USD 1.22

    Regular Price: USD 1.99

    Sale Price USD 1.22

  • Hydor ETH 200 In-Line Heater - 1/2" - 200 W
    The self-limiting PTC heating element guarantees maximum safety against any risk of overheating. The exclusive technology and the high quality of the components guarantee a long lasting product.

    Regular Price: USD 58.52

    Sale Price USD 54.98

    Regular Price: USD 58.52

    Sale Price USD 54.98

  • Hydor ETH 201 In-Line Heater - 5/8" - 200 W
    The self-limiting PTC heating element guarantees maximum safety against any risk of overheating. The exclusive technology and the high quality of the components guarantee a long lasting product.

    Regular Price: USD 69.99

    Sale Price USD 59.99

    Regular Price: USD 69.99

    Sale Price USD 59.99

  • Hydor ETH 300 In-Line Heater - 5/8" - 300 W
    The self-limiting PTC heating element guarantees maximum safety against any risk of overheating. The exclusive technology and the high quality of the components guarantee a long lasting product.
    USD 60.22
    USD 60.22
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