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Maintaining the correct temperature for tropical fish may be the single most important factor for a successful aquarium. Since fish do not have the ability to regulate their own body temperature, it is crucial that we provide consistent water temperatures with minimal fluctuations.
The majority of fish cannot cope with stress from constant temperature fluctuations, which leads to a compromised immune system. This increases the probability of avoidable diseases, parasites, and bacterial infections.
Having a properly sized heater is one of the primary requirements for maintaining a healthy aquatic ecosystem.

At AquaCave, we offer some of the best selection and best prices on Aquarium Heaters, Fish Tank Heaters, Titanium, Heater Controllers, and Water Chillers for you marine, reef, and freshwater aquarium.

  • Coralife Digital Aquarium Thermometer

    Coralife

    Coralife Digital Aquarium Thermometer

    Ideal for aquariums and terrariums. Readings in 0.1 degrees Fahrenheit or Celsius. Temperature range -10 degrees F to 140 degrees F (-23 degrees C to 60 degrees C). Mounting suction cups and battery included. 39 inch long temperature probe cord...

    Was: $9.99
    Now: $8.49
  • YCA Digital Aquarium Thermometer YCA Digital Aquarium Thermometer YCA Digital Aquarium Thermometer

    Your Choice Aquatic

    YCA Digital Aquarium Thermometer

    YCA Digital Aquarium Thermometer Easy to read LCD displaySubmersible temp probeTemperature Range :-50 ~ +70Power: 1 x DC 1.5V LR44 (Included)Accuracy:+/-1Temperature reading to within 0.1YCA Digital Aquarium Thermometer

    Was: $7.95
    Now: $6.76
  • Hanging Stainless Steel Thermometer Hanging Stainless Steel Thermometer

    Fluval

    Hanging Stainless Steel Thermometer

    Designed for aquariums and terrariums. Great for fish, reptiles, or amphibians. Easy to read indicator with range from 70 - 102 F. Reads in Fahrenheit and Celsius. Designed for aquariums and terrariums. Great for fish, reptiles, or amphibians. Easy to...

    Was: $3.99
    Now: $3.39
  • Marina Dorado LCD Thermometer 66F-88F

    Fluval

    Marina Dorado LCD Thermometer 66F-88F

    Water temperature is an important factor that affects the health of fish. The MARINA LCD vertical mount digital thermometer (3" 7.6 cm in length) is accurate and easy to read, it ranges from 19 to 31 degrees C (66 to 88 degrees F). Marina Dorado LCD...

    Was: $2.99
    Now: $2.54
  • Marina Minerva LCD Thermometer 66F-86F

    Fluval

    Marina Minerva LCD Thermometer 66F-86F

    Marina Minerva LCDThermometer 66F-86F- Digital Liquid crystal- Fahrenheit - Centigrade- 66 Fo (19 Co) - 86 Fo (30 Co)- Blister packed on cardMarina Minerva LCD Thermometer 66F-86F - Digital Liquid crystal - Fahrenheit - Centigrade - 66 Fo (19 C) - 86 F...

    Was: $2.99
    Now: $2.54
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