One Adult pair of Halloween Madagascar Hissing Cockroach (Elliptorhina Javanica) - Size: Adult - Sex: (x1)Male (x1)Female - (CULTURE INFO) These colonies should be housed in a smaller container, Many people use egg cartons for the media, however using a substrate can be beneficial as well. I like to keep the back half of the tank on the heat mat. I will mist the tank or dump water into the back half were it will naturally evaporate and provide humidity. Hand raised used to people.