Monocentropus balfouri — Fact Sheet

Monocentropus balfouri · Monocentropus balfouri

Full care guide and sources

📋 At a glance

🏠 Enclosure

• Adult enclosure: 30 × 30 × 30 cm (length × width × height).
• Height includes substrate. Keep the open drop above it short, with no hard landing surfaces; enlarge the footprint for an unusually large adult.
• Substrate planning depth: 25 cm

🪨 Substrate and furnishings

The enclosure should allow digging and webbing. Provide deep substrate, stable cork, several starter retreats, clean water, and web anchor points. Do not remove the central webbing at every cleaning.

Dense webbing is expected and should be treated as part of the habitat. Place water and service points at the edge of the webbed zone so the central retreat does not have to be torn open.

💡 Lighting

Keep lighting simple: ordinary room light and a consistent day-night cycle are enough. Avoid direct lamps that overheat or dry the enclosure too aggressively. Quarantine new arrivals in a simple secure setup before moving them into a display enclosure.

🌡️ Temperature

• Daytime air: 22-27 °C
• Cool zone: 20-23 °C
• Night: 20-23 °C

💧 Humidity and water

Keep the main enclosure dry to moderate. Leave one slightly moister area around part of the retreat, and provide a constant dish of clean water. After heavier moistening, the surface should be able to dry; stagnant moisture and heavy air are mistakes.

🪳 Feeding

Suitable diet: crickets, roaches, locusts, and other suitable insects sized to the spider. Remove uneaten prey and food remains. Feed according to body condition, not only appetite, and avoid leaving live prey during premolt. A fasting spider is not automatically in trouble, but refusal with weight loss, dehydration, or weakness needs a husbandry check.

☠️ Safety

Monocentropus balfouri must be managed without direct handling. Clinical reports of bites from some African and Asian tarantulas, including Pterinochilus murinus and Poecilotheria regalis, describe severe pain and delayed or prolonged muscle cramps. These reports justify caution across this group; they do not establish the exact severity of every species or every bite.

A published Monocentropus balfouri case documents generalized cramps and muscle breakdown after a bite.

Use long tools and a catch cup, with a second containment tub for transfers in a closed room. Keep hands out of retreats and webbing, do not hand-feed, and do not chase an escaping spider. Keep transfers low to limit fall injuries to the animal.

After a bite, wash the wound with soap and water and contact a poison centre or medical service with the scientific name and time of exposure. Seek urgent care for severe or spreading pain, muscle cramps or persistent symptoms; call emergency services for breathing difficulty, throat swelling or collapse. Do not cut the wound or try to extract venom. Treatment focuses on wound assessment and symptom control under medical supervision.

🩺 Health — warning signs

For a single animal, the common problems are dehydration, an enclosure kept too wet, poor ventilation, and escapes during maintenance. In a group, add another risk: one animal may stay thin, be pushed away from retreats, or feed worse than the others.

That is not personality; it is a sign that the group is not working well. Separate weak or pressured animals early, and do not add new animals to an unstable group. For serious injury, leaking hemolymph, or a difficult molt, seek an exotic-veterinary professional when possible.

Keep short notes on feeding, molts, and the number of animals. With group keeping, memory is not enough, because the problem often becomes obvious only after one animal has already lost condition.