Tarantula
This fella needs ground cover and diggable depth first, so the best checkout pair is a deep Buddy with a starter hide.
Burrow Buddy fits this fella as a juvenile, but they will outgrow it at around 5" DLS. Plan for a larger terrestrial with deep substrate; this is a 7–8" adult SpecieZs. DM Big Z anytime if you want help speccing the next step.
Speed, attitude, color. Read the care guide before unboxing day.
High contrast, high energy, always out in the open
The Brazilian White Knee, Acanthoscurria geniculata, is a big Amazonian terrestrial in dramatic black-and-white: inky body, bold white-banded knees, a thick coat of red-orange hairs over the abdomen, and a 7-to-9-inch adult span. It is big, it is bold, and unlike a lot of giants it actually sits out where you can see it.
The feeding response is the stuff of legend, a lightning strike every single time, which makes it one of the most rewarding display tarantulas going. Fast-growing, hardy, and uncomplicated on care, but with a real territorial swagger and a fast, food-motivated streak that nudge it out of the true-beginner lane. It does flick urticating hairs readily, so it is a watch-do-not-touch animal, and a heavy juvenile will eventually want a roomier custom build than the kit it ships in.
The numbers live in the care guide. Enclosure size, temps, humidity, feeding schedule, premolt signs, handling boundaries: it's all in the care guide for this exact fella. Start with the full Advanced guide, or click for the quick Open the Simple version →
Acanthoscurria geniculata - Spice 3 — Intermediate. Baby Buddy — spiderlings only (escape-proof ventilation; rehouse up before it's cramped); Burrow Buddy — grow-out for juveniles; Larger custom terrestrial enclosure for the adult — a full-grown white knee (7–8 in) needs far more than a 48 in² floor
Acanthoscurria geniculata
Big Z's Quick Verdict: A bold, fast-growing terrestrial with a huge feeding response and impressive adult size — 7–9 inches across, with females living roughly 12–20 years.
| Temp | 75–82°F |
|---|---|
| Humidity | Moderate-High (70-85%) |
| Setup | Large terrestrial |
| Substrate | Moderately deep soil/coco mix |
| Feeding | Strong feeder; weekly |
| Handling | Not recommended |
Humidity zones: Very Low under 30% - Low 30-60% - Low-Moderate 40-70% - Moderate 60-80% - Moderate-High 70-85% - High 80%+ - Very High 90%+
Current Big Z's catalog: Yes
Acanthoscurria geniculata
Keeper Snapshot: A bold, fast-growing terrestrial with a huge feeding response and impressive adult size — 7–9 inches across, with females living roughly 12–20 years.
| Temperature | 75–82°F |
|---|---|
| Humidity | Moderate-High (70-85%) |
| Setup Type | Large terrestrial |
| Substrate | Moderately deep soil/coco mix |
| Feeding | Strong feeder; weekly |
| Care Difficulty | Spice 3 — Intermediate |
| Handling | Not recommended |
Humidity zones: Very Low under 30% - Low 30-60% - Low-Moderate 40-70% - Moderate 60-80% - Moderate-High 70-85% - High 80%+ - Very High 90%+
High contrast, high energy, always out in the open
The Brazilian White Knee, Acanthoscurria geniculata, is a big Amazonian terrestrial in dramatic black-and-white: inky body, bold white-banded knees, a thick coat of red-orange hairs over the abdomen, and a 7-to-9-inch adult span. It is big, it is bold, and unlike a lot of giants it actually sits out where you can see it.
The feeding response is the stuff of legend, a lightning strike every single time, which makes it one of the most rewarding display tarantulas going. Fast-growing, hardy, and uncomplicated on care, but with a real territorial swagger and a fast, food-motivated streak that nudge it out of the true-beginner lane. It does flick urticating hairs readily, so it is a watch-do-not-touch animal, and a heavy juvenile will eventually want a roomier custom build than the kit it ships in.
The numbers live in the care guide. Enclosure size, temps, humidity, feeding schedule, premolt signs, handling boundaries: it's all in the care guide for this exact fella. Start with the full Advanced guide, or click for the quick Open the Simple version →
Acanthoscurria geniculata - Spice 3 — Intermediate. Baby Buddy — spiderlings only (escape-proof ventilation; rehouse up before it's cramped); Burrow Buddy — grow-out for juveniles; Larger custom terrestrial enclosure for the adult — a full-grown white knee (7–8 in) needs far more than a 48 in² floor
Acanthoscurria geniculata
Big Z's Quick Verdict: A bold, fast-growing terrestrial with a huge feeding response and impressive adult size — 7–9 inches across, with females living roughly 12–20 years.
| Temp | 75–82°F |
|---|---|
| Humidity | Moderate-High (70-85%) |
| Setup | Large terrestrial |
| Substrate | Moderately deep soil/coco mix |
| Feeding | Strong feeder; weekly |
| Handling | Not recommended |
Humidity zones: Very Low under 30% - Low 30-60% - Low-Moderate 40-70% - Moderate 60-80% - Moderate-High 70-85% - High 80%+ - Very High 90%+
Current Big Z's catalog: Yes
Acanthoscurria geniculata
Keeper Snapshot: A bold, fast-growing terrestrial with a huge feeding response and impressive adult size — 7–9 inches across, with females living roughly 12–20 years.
| Temperature | 75–82°F |
|---|---|
| Humidity | Moderate-High (70-85%) |
| Setup Type | Large terrestrial |
| Substrate | Moderately deep soil/coco mix |
| Feeding | Strong feeder; weekly |
| Care Difficulty | Spice 3 — Intermediate |
| Handling | Not recommended |
Humidity zones: Very Low under 30% - Low 30-60% - Low-Moderate 40-70% - Moderate 60-80% - Moderate-High 70-85% - High 80%+ - Very High 90%+
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