How long do tarantulas live
Females of common species live 15–30 years; males only 3–8 (they die after maturing and mating). The main risks are falls (their abdomens rupture easily — never drop them), dehydration, and mites from dirty substrate. A stable, species-appropriate setup carries females for decades.
Enclosure by lifestyle
Terrestrial species (rose, red-knee) need a low, wide terrarium with 3–4 in (8–10 cm) of substrate (coco fiber) and a hide; arboreals need height and cork bark. Provide a shallow water dish. Ventilation matters; avoid cramped, wet boxes. Secure lid — they are escape artists. Minimal décor is fine; they are not active explorers.
Heat, humidity, and the molt
Most pet tarantulas want 70–80°F (21–27°C) and species-specific humidity (40–70%); research yours. The critical event is molting — they lie on their back and shed; NEVER disturb a molting spider, and raise humidity slightly beforehand. After molt they are soft and must not be fed for a week. A failed molt is the top cause of death.
Feeding and the no-handle rule
Feed live or pre-killed insects (crickets, roaches, occasional mealworm) every 1–2 weeks for adults, more for spiderlings. Remove uneaten prey. Tarantulas are not social and should not be cohabitated (they eat each other). Handling risks a fatal fall and a stress reaction — observe, don't hold. A hook or cup is the safe way to move one.
Beginner mistakes to avoid
- Dropping a tarantula — abdominal rupture is fatal.
- Disturbing a molt — they die mid-shed.
- Cohabitating — they cannibalize.
- Handling — fall risk and stress.