Best Humidifier For Frog Tanks and Vivarium’s – Tips, Tricks and a Buying Guide

Why Is Humidity Vital for Reptiles and Amphibians?

If you own a humidifier to keep dry skin, allergies and other issues at bay all-year-round, you should also concentrate on your pets’ needs when it comes to air moisture levels, especially if you own an amphibian or a reptile, since proper humidity is not a question of comfort for them, but rather a necessity.

It is vital that the environment in a frog tank or a vivarium is maintained at an optimal level of humidity since it provides healthy conditions for their skin, eyes, respiration and even for the shedding process. Besides hydration, proper moisture levels are essential for egg incubation and typical reptile behaviour.

How Do You Keep a Frog Tank Humidity at Optimum Levels?

Although you can use a spray bottle to increase humidity levels in a vivarium, constantly having to remember to fill a clean bottle with fresh water and mist the inside of the terrarium can be a hassle. You could also try a programmable misting system, but most reptile and amphibian owners would recommend using a fogger, also known as a humidifier, for vivarium tank builds.

Devices such as ultrasonic foggers and humidifiers can maintain the humidity levels in your frog tank at optimal levels with less input on your part. But how do you decide what is best for your reptile or amphibian tank?

Using a cool mist or ultrasonic humidifier is ideal for pet enclosures but be sure to also use a hygrometer so you can figure out how to adjust the humidifier’s activity since different species have distinct requirements. It is not recommended to just leave the humidifier on for long periods, since in the native environment of your reptile or amphibian, humidity levels fluctuate during the day, and you should adjust the conditions in the tank accordingly.

How Do You Control Humidity Levels in a Vivarium?

Every reptile or amphibian specie has specific needs when it comes to humidity. If a green tree frog is comfortable with a humidity level of over 65%, snakes can manage humidity levels that range from as low as 50% to as high as 70%. If you own a gecko, it gets even trickier, since the humidity range varies widely depending on their species.

Besides using a cool mist or ultrasonic humidifier for your frog tank or vivarium, to get the best results you should consider other aspects that help maintain air moisture:

Use moisture-retaining substrates, adjusting them according to the needs of the species you own. You can choose from sandy substrates, coconut husk, orchid bark or even cypress mulch. Moss is another great way to retain moisture in the vivarium, and it also enhances the overall realistic appearance of the environment.

Decrease some of the ventilation since it can act counterintuitively and decrease humidity levels in the tank. Always check your pet and see if there are any changes in their skin or scales condition to see if you need to readjust humidity and ventilation settings.

Frog tanks with species that welcome more water in their environments could be enhanced with water dishes or other water setups, such as vivarium waterfalls, rain chambers and water drippers – they all increase humidity levels in a reptile or amphibian vivarium.

Hot Mist Humidifiers or Cool Mist Humidifiers for Frog Tanks?

You should choose a cool mist humidifier for your vivarium since hot mist humidifiers can increase the temperature in the tank and could harm the frogs.

Basic Features to Look for in a Reptile or Amphibian Tank Humidifier

First, you need a vivarium fogger or humidifier that has a compact and durable design. Then, you should check for the assembly instructions, since you need it to be quick and straightforward. The water capacity is essential, so look for a larger tank capacity, especially if your tank is the home for numerous reptiles and amphibians. A flexible hose will ease the installation process, while features such as dry-run protection or adjustable misting settings will ensure the safety and health of your pets. Last, but not least, look for a humidifier with a tank designed so that is easy to refill.

This buying guide provides you with several models to consider in order to purchase the right humidifier for your tank.

Best Reptile and Amphibian Foggers and Humidifiers


  1. Evergreen Pet Supplies Reptile Humidifier / Reptile Fogger – It is ideal for a great variety of species, has a tank with 2-litre capacity and has an adjustable fog output of up to 300ml/hour. The product is compatible with all terrariums and enclosures.
  2. Zoo Med Reptile Fogger Terrarium Humidifier – It uses ultrasonic technology, has a no-spill valve, adjustable fog output and an extendable, flexible hose. The humidifier comes with a 90-day warranty and is suitable for many species.
  3. Oiibo Reptile Humidifier, Double Extension Tube, 2 in 1 Joint, Suitable for Reptiles, Amphibians and Terrarium – It has a 2.2-litre tank and a premium silent misting system. Maximum fog output for this product ranges from 250ml to 350 ml per hour.
  4. Coospider Reptile Fogger Terrariums Humidifier Fog Machine Mister – Its 3L water tank is perfect for a wide variety of reptiles and amphibians, such as frogs, toads, lizards, turtles, pythons, iguanas, or chameleons. It comes equipped with dry run protection, adjustable fog output and a one-year warranty.
  5. BETAZOOER Reptile Humidifier - Reptile Fogger with Extension Tube, Suitable for Reptiles Amphibians and Terrarium – This humidifier has a 2.5-litre tank and it is compatible with a variety of enclosures, from vivariums to tanks, terrariums, vision cages or aquariums. It is a silent ultrasonic humidifier, equipped with dry-run protection.
  6.  VIVOSUN Pet Supplies Reptile Humidifier - Mister Fogger Terrariums Humidifier Extremely High-Pressure Silent Pump Fog Machine for a Variety of Reptiles/Amphibians – With a large tank and dry-out protection, this premium silent mister provides a comfortable and quiet environment for

Other Questions

How do you keep a frog tank humid?

To allow proper digestion, humidity is very important in a vivarium. It should be noted that a hygrometer is very useful for keeping the humidity correct.

How do you lower humidity?

To lower humidity you can use a de-humidifier, but with a vivarium you can open it up to the normal air, and extra humidity will soon be gone

Will opening windows reduce humidity?

If the humidity outside of your room is lower (which it normally will be), then opening a window will reduce the humidity in the room and surrounding area



If you require more information, please check these references

Methodologies for the Care, Maintenance, and Breeding of Tropical Poison Frogs , article, "", retrieved on, Fri 16-October-2020

Evaluation Of Aquaponics Technology In Alberta , article, "", retrieved on, Fri 16-October-2020

Designing Environments for Captive Amphibians and Reptiles , article, "", retrieved on, Fri 16-October-2020

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