Madagascar Hissing Cockroach

  Madagascar Hissing Cockroach Care Sheet

Basic Info
        •       Scientific Name: Gromphadorhina portentosa
        •       Common Name: Madagascar Hissing Cockroach, “Hissers”
        •       Lifespan: 2–5 years
        •       Size: 2–4 inches (5–10 cm)
        •       Temperament: Docile, easy to handle, non-aggressive

Habitat/Enclosure
        •       Tank size: 5–10 gallon tank (for a small group)
        •       Ventilation: Good airflow is important
        •       Lid: Secure lid is a must — they can climb glass!

 Temperature & Humidity
        •       Temperature: 75–85°F (24–29°C); use a heat mat if needed
        •       Humidity: 60–70%
        •       Mist lightly a few times a week
        •       Use coconut fiber, sphagnum moss, or reptile bark to retain humidity

Substrate & Decor
        •       Coconut husk, eco-earth, or peat moss (1–2 inches deep)
        •       Add cork bark, egg cartons, or cardboard tubes for hiding
        •       Keep substrate slightly moist, not soggy

Diet/Food
        •       Fresh fruits & vegetables: carrots, apples, bananas, leafy greens
        •       Dry dog/cat food or roach chow for protein

 Supplements
        •       Calcium powder (optional but helpful, especially for breeding)

 Water
        •       Provide a shallow water dish with cotton or sponge (to prevent drowning)
        •       Alternatively, mist their enclosure to provide droplets for drinking


 Cleaning & Maintenance
        •       Spot clean weekly (remove uneaten food & droppings)
        •       Deep clean monthly: replace substrate and disinfect enclosure
        •       Avoid harsh chemicals — use reptile-safe cleaners or diluted vinegar

 Breeding (optional)
        •       Hissers are livebearers (females carry eggs internally)
        •       Gestation: ~60 days
        •       Baby roaches (nymphs) resemble mini adults and molt several times
        •       Keep sexes together for breeding (males have large, horn-like bumps on pronotum)

Handling & Safety
        •       Generally safe and clean — they don’t bite or sting
        •       Wash hands after handling
        •       Can climb smooth surfaces — be cautious during handling
        •       They hiss when threatened or mating — not a sign of aggression!

Notes
        •       Do not release into the wild
        •       Great classroom or beginner exotic pet
        •       Not considered pests (don’t infest homes)