Madagascar hissing cockroach (Gromphadorhina portentosa)
Photo: Almabes at English Wikipedia / Public domain · via Wikimedia Commons

Invertebrate · Cockroach

Madagascar hissing cockroach care guide

Gromphadorhina portentosa

Beginner

The madagascar hissing cockroach is a beginner-level cockroach from Madagascar. Adults reach Body 5–7.5 cm and live 2–5 years in captivity. Colony species. Escape-proof lid needed.

  • Enclosure 45 × 30 × 30 cm
  • Temp 24–30°C
  • Humidity 50–70%

How much does a madagascar hissing cockroach cost in Canada?

Animal$5–15Typical captive-bred price
Bioactive enclosure$140–250Enclosure $40–80 · equipment $40–90 · bioactive supplies ≈ $80
Yearly upkeep$30–60Food, supplements, bulbs, power, vet fund
First year total$180–330All prices CAD, estimates

Madagascar hissing cockroach quick facts

Skill level
Beginner
Adult size
Body 5–7.5 cm
Lifespan
2–5 years
Activity
Nocturnal
Native range
Madagascar
Minimum enclosure
45 × 30 × 30 cm (18 × 12 × 12 in, ≈ 11 US gal)
Housing
A colony species – best kept in a group.
Temperature
24–30°C
Humidity
50–70%
UVB
Not needed
Diet
Omnivore – vegetables, fruit, dry dog or roach chow
Bioactive style
Invertebrate colony

Madagascar hissing cockroach enclosure & bioactive setup

Give one adult at least 45 × 30 × 30 cm (18 × 12 × 12 inches). A colony species – best kept in a group. This species suits a invertebrate colony bioactive build.

  1. Leaf litter2 cm
  2. Jurassic ABG Terrarium Mix5 cm

Leaf litter is food here, not decoration – keep a thick layer topped up. Keep one side damper than the other.

Temperature: 24–30°C. Humidity: 50–70%. UVB: Not needed.

What does a madagascar hissing cockroach eat?

Omnivore – vegetables, fruit, dry dog or roach chow. Offer fresh produce 2–3 times weekly with dry food and a water source always available.

Handling, temperament & health

Docile and great for handling; hisses when disturbed.

Health watch: Phoretic mites are harmless; watch for dehydration and overcrowding.

Cleaning & maintenance schedule

Daily

  • Nothing needed most days.

Weekly

  • Mist the damp side; add vegetables or protein food in small amounts and remove leftovers after 24–48 h.

Monthly

  • Top up leaf litter and add a calcium source (cuttlebone).
  • Thin out the colony or split it if it gets crowded.

Yearly

  • Replace about a third of the soil, which turns into frass over time.

Recommended for a madagascar hissing cockroach bioactive

Quantities are for one minimum-size enclosure (45 × 30 × 30 cm).

Madagascar hissing cockroach FAQ

Is the madagascar hissing cockroach good for beginners?

Yes – the madagascar hissing cockroach is a good choice for beginners. Docile and great for handling; hisses when disturbed.

What size enclosure does a madagascar hissing cockroach need?

At least 45 × 30 × 30 cm (about 18 × 12 × 12 inches, roughly 11 US gallons) for one adult. A colony species – best kept in a group.

How much does a madagascar hissing cockroach cost in Canada?

Typically $5–15 CAD to buy, about $140–250 CAD for a complete bioactive enclosure, and $30–60 CAD a year to keep.

What temperature and humidity does a madagascar hissing cockroach need?

Temperature: 24–30°C. Humidity: 50–70%.

What does a madagascar hissing cockroach eat?

Omnivore – vegetables, fruit, dry dog or roach chow. Offer fresh produce 2–3 times weekly with dry food and a water source always available.

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This care sheet is general guidance from One Bioactive, not veterinary advice. Needs vary with age, locality and individual animals – confirm with your breeder and an exotics vet. Prices are typical Canadian ranges in CAD and change over time.