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Entre Rios Tarantula

Grammostola iheringi

GrammostolaTheraphosidae

advanced
Entre Rios Tarantula (Grammostola iheringi)
Burntclaw15, CC BY 4.0, via Wikimedia Commons

Overview

**Entre Rios Tarantula** — One of the most extreme slow growers in the tarantula hobby. A large, dark Grammostola from temperate Argentina and southern Brazil, sometimes confused with G. pulchra but distinguishable by range and subtle coloration differences.

CRITICAL CARE NOTE: G. iheringi is a temperate species from a region with cold winters. It requires cooler temperatures (65-75°F) and may need a seasonal cooling period to trigger normal feeding cycles. Temperatures consistently above 80°F can be stressful or even fatal over time.

Growth rate is extraordinary even by Grammostola standards — females may take 10-15 years to mature and can live 30+ years. Fasting for months at a time is completely normal. Advanced rating is primarily due to care patience and temperature management requirements. Temperament is excellent — very docile and rarely hair-kicks.

Husbandry Requirements

Temperature & Humidity

Temperature

65-75°F

Humidity

55-70%

Enclosure Sizes

Sling:Small vial or 2x2x3"
Juvenile:5x5x5"
Adult:12x12x8"

Substrate

Type:dry coco fiber or peat/vermiculite mix
Depth:3-4 inches

Feeding Schedule

Sling:Every 5-7 days
Juvenile:Every 10-14 days
Adult:Every 3-6 weeks

Prey size: Appropriately sized prey (up to 2/3 body length)

Quick Stats

Type

terrestrial

Adult Size

6-8 inches

Growth Rate

very slow

Native Region

Argentina (Entre Ríos, Corrientes), southern Brazil

Temperament

docile

Behavior

Webbingminimal
BurrowingYes
Water DishRequired

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