Madagascar Hissing Cockroaches - Gromphadorhina Portentosa

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Gromphadorhina Portentosa or Madagascar Hissing Cockroaches are an absolutely breathtaking species of roach that max out at around 4 inches in length. 
These roaches are exceptionally fast growing, in relation to their adult size.
They are prolific breeders and can have clutches ranging anywhere between 30-100 nymphs or (baby roaches) at a time. 
These amazing creatures are gentle giants, they are completely harmless, incapable of biting and surprisingly hygienic. 
Hissers are capable of climbing smooth surfaces so using a properly modified enclosure is a must. 
Hissing roaches are a non pest species of roach, this means, if a few were to escape their enclosure there's no risk of them invading your home. In fact, they will most likely die in a week or soo. 
Males have two large bumps above their head while females lack these bumps all together. 
The males use these bumps to headbutt each other, for breeding rights and territory disputes. 
These insects are called hissing roaches since they possess the ability to hiss by forcing air through breathing holes located on the side of their body. 
It takes less then 5 months for new born Nymphs to mature sexually. 

Care/husbandry: 

1. Enclosure - A plastic enclosure with a lid that has an airtight seal will make sure no baby roaches will be able to escape. This is especially important if you're trying to breed these roaches. As for the ventilation holes, you'll want to give the roaches plenty of cross ventilation by drilling holes on all four sides of the enclosure. Just make sure the holes drilled are covered by micro mesh, This ensures none of your new born nymphs escape. 
2. Humidity/Substrate - Since these insects come from madagascar its important they have a constant supply of water. Make sure to leave a water dish with water crystals in the roaches enclosure at all times. If you prefer not to use water crystals, make sure you spray down the enclosure every three days, that way the roaches can drink excess water off the sides of the enclosure. Any mold resistant substrate, like coconut fiber will work fine. More importantly, be sure not to over moisten the enclosure or let it get too dry.
3. Temperature - roaches must not be kept any lower than 65°F. Keep in mind, the warmer you keep your roaches the more active they become and the more often they will breed. Don't keep your roaches higher than 105 °F 
4. Feeding - Hissing roaches are far from picky eaters, they will eat dried dog, cat or fish food. As well as a variety of fruits and vegetables. Just beware of how much fruits and veggies you give them as it's hard for them to digest a primarily vegetarian diet. I suggest giving your roaches 70% dried dog, cat, or fish feed and 30% fruits and veggies

Other useful information: 

Latin/Scientific name: Gromphadorhina Portentosa
Common name: Madagascar Hissing cockroach 
Climb status: Both nymphs and adults can climb new surfaces 
Flight status: not capable of flight 
Locale: Island of Madagascar 
Size: 3-4 inches or 10-11 centimeters 
Handleability: very handleable  
Growth rate: moderate growing but will grow much faster if kept warmer 
Life expectancy: roughly two years +
Recommended keeper experience level: beginner to intermediate