Keeper guide

How Fast Does Trinidad Olive Tarantula Grow? — Neoholothele incei Growth Rate

Neoholothele incei, commonly known as the Trinidad Olive Tarantula, has a fast growth rate. Young spiders usually moult more often than large juveniles and adults, but no two Trinidad Olive Tarantulas grow at exactly the same speed.

At a glance

Quick facts

World
New World
Origin
Trinidad and Tobago and Venezuela
Lifestyle
Fossorial
UK hobby rarity
Common
Maximum size
about 5–7 cm
Growth rate
Fast
Male lifespan
roughly 1–3 years
Female lifespan
5–8+ years
Temperament
Very fast and reclusive; more likely to retreat than stand its ground
Venom
Venom is not generally regarded as medically significant, but bites should still be avoided
Temperature
20–27°C
Moisture / humidity
Slightly moist lower substrate with good ventilation; avoid waterlogged conditions
CITES
Not listed

How fast does it grow?

Trinidad Olive Tarantulas are generally described as fast growers. That gives a useful expectation for Neoholothele incei, but it is not a promise that every sling will reach the same size at the same age.

Adult Neoholothele incei reach about 5–7 cm. The time taken to get there depends on sex, feeding, temperature and ordinary individual variation.

Moult intervals change with age

Small Trinidad Olive Tarantulas often moult more frequently because they are growing rapidly. As Neoholothele incei gets larger, the interval between moults normally becomes longer.

Do not treat a longer interval in an older Trinidad Olive Tarantula as a problem by itself. Look at appetite, body condition, retreat use and the spider's previous moult pattern.

Feeding and temperature

Feeding influences how quickly Neoholothele incei grows, but there is no benefit in keeping the abdomen constantly overfilled. Offer suitable meals and let appetite guide the interval.

A practical temperature range for Neoholothele incei is 20–27°C. Stable conditions are preferable to pushing the temperature upward in an attempt to force faster growth.

Male and female growth

Male Neoholothele incei usually mature sooner and have a shorter lifespan of about roughly 1–3 years, while females can live 5–8+ years. That difference means two similar-sized juveniles may eventually follow very different timelines.

Sex cannot be judged reliably from growth speed alone. Use a suitable moult when possible instead of assuming a faster-growing Trinidad Olive Tarantula must be male.

Tracking growth

Record moult dates for Neoholothele incei and note approximate size when rehousing. You do not need precise measurements after every moult; a simple record is enough to show whether the spider is growing steadily.

Photographs taken after a Trinidad Olive Tarantula has hardened can also help show changes over time, provided the spider is not disturbed simply to get a measurement.

When growth means rehousing

Rehouse a Trinidad Olive Tarantula when its current enclosure no longer gives enough retreat space, substrate or safe access for maintenance. Do not move Neoholothele incei after every moult automatically.

Prepare the larger enclosure before the transfer. The goal is to keep each stage of Neoholothele incei's growth in housing that is secure and practical, not to race toward the adult enclosure.