Humidity requirements vary between species, however most tropical species prefer a medium to high humidity (60-75%). Refer to Species Selection-Cockroaches page for humidity requirements for the species you are keeping.  Cheap humidity meters can be purchased from most pet stores.

Humidity/moisture is often obtained from a water source (i.e. water dispenser) or wet foods. Humidity is important to prevent dehydration and to facilitate molting. Once a cockroach has lost its old protective exoskeleton, it is prone to dehydration. Where cockroaches are dying during their molt, humidity should be increased.

Too much humidity can create harmful pathogens such as fungi, bacteria and mites. Condensation on the walls of the container is a sign of too much humidity or poor ventilation. Your egg/apple cartons will also quickly become floppy/soggy, food becomes mouldy or ferments which results in bad smells.

Humidity generally increases as moisture availability and ambient temperatures increases, and decreases with reduced water availability and lower ambient temperatures.

Humidity can be increased in the following ways:

  • Partially block off the ventilation ports with tape.
  • Cover the whole ventilation port with a thin towel
  • Add free available water sources source such as a bowl with pebbles, in it so cockroaches don’t drown or a small substrate area which is misted every few days. The larger the surface area, the more humidity will evaporate.
  • Provide daily wet foods to your cockroaches
  • Mist and spray the sides of the container every 2-3 days.

Humidity can be decreased in the following ways:

  • Increase ventilation
  • Remove unnecessary water sources such as substrate, additional water bowls etc.
  • Is the amount of wet foods provided excessive?

Need More Information…

Below is a summary of the “Heating and Storage” sections of our Cockroach Breeding Manual.

  • Tables which provide the various temperature thresholds to manage a cockroach colony
  • Advantages/disadvantages for 6 different heating systems including free solar options. Find out the best method for productive cockroach production.
  • Learn the thermodynamic principles for efficient heat conservation.
  • 20 methods to reduce your heating costs.
  • How to estimate your heating costs and manage excessive heat.
  • How to store breeding containers so they are easy to access and feeding can be done without opening the lid. This will allow numerous containers can be stored into a tight configuration, to save space or to increase the number of containers.

© Zega Enterprises 2018, ©Photographs, diagrams and tables by Glenn Kvassay or as credited 2018