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Grammostola grossa

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Brazilian Silver
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🌎New World Terrestrial 🦵Large 🟢Docile Beginner 🍃Temperate

A New World terrestrial tarantula. Large and docile, and generally recommended for beginner keepers. Market price is $120, with 14 live listings across 13 sellers and a lowest ask of $93.

A large southern Grammostola out of Brazil, Uruguay and Argentina, dark with reddish setae, and one of the bigger animals in a genus that mostly runs moderate.

Slow, terrestrial, calm without being inert, long lived, and comfortable cooler than tropical defaults. New World, urticating hairs present and used under pressure. Everything about keeping it matches pulchripes and actaeon.

Lowest Ask
$93
best value listed now
Market Price
$120
trimmed median, recent asks
All-Time Low
$51
seen across all crawls
90-Day Range
$51–$450
low to high
Live Listings
14
at 13 vendors now
Rarity
Ubiquitous
1/10 · seen at 13 vendors ever
Prices as of the last crawl — 57 minutes ago ()
The white marker shows where today's best-value listing sits between the lowest and highest price ever recorded. Liquidity: 738 listings / 90d · 13 vendors ever
$51 all-time low best value now: $93 $450 all-time high
Price History — asking prices; a time trend appears as daily crawls accumulate
Each dot = one listing: Female Male Unsexed | – – all-time low – – market price best value now (hover the chart for price · size · sex · vendor · date) (drag across the chart to read any day)
Available Now — 18 listings · click a row to open the seller's page
4 of these are from sellers we exclude from price stats (they list premium display specimens), so the figures above are calculated without them. How we calculate prices
Sellers name more than one form
Guarani
4 listings · $93–$140
Brazil
4 listings · $450–$2500
Read from each seller's own listing title. These are asks currently listed, not a market price — the market figures above cover the species as a whole.
TyDye Exotics 💎
$93 ❓ shipping
1.0-1.5" U CB View listing
Spider Shoppe 💎
$98 ❓ shipping
Josh's Frogs 👍
$100 $140 landed
1/2 inch U CB View listing
Shane's Spiders 👍
$100 $150 landed
Hardcore Arachnids 👍
$110 $160 landed
Deadpan Exotics 👍
$120 ❓ shipping
1.5-2.0" U CB View listing
Big Z's 👍
$125 ❓ shipping
0.75-1.0" U CB View listing
Buddha Bugs 👍
$125 ❓ shipping
The Mother of Spiders 👍
$125 ❓ shipping
The Spider Room 👍
$125 $185 landed
Exotics Unlimited USA 👍
$125 $164 landed
0.75-1.0" U CB View listing
Paladin Exotics
$140 $190 landed
The Mother of Spiders
$150 ❓ shipping
ArachnoEden 👍
$450 ❓ shipping
Westside Tarantulas 👍
$450 ❓ shipping
Urban Tarantulas
$675 $725 landed
Female - 3in - beauties - super docile View listing
Westside Tarantulas
$950 ❓ shipping
Westside Tarantulas 👍
$2500 ❓ shipping
SellerFormSizeSexSourceAskShippingLandedDealRarity
TyDye Exotics Guarani 1.0-1.5" U CB° $93.29 -25% was $108 💎 3/10 Buy →
Spider Shoppe Guarani 0.75" U CB° $98.00 -22% 💎 3/10 Buy →
Josh's Frogs 1/2 inch U CB $99.99 $40 $140 👍 5/10 Buy →
Shane's Spiders Sling U CB° $100.00 $50 $150 👍 5/10 Buy →
Hardcore Arachnids 1.0" U CB° $110.00 -12% $50 $160 👍 3/10 Buy →
Deadpan Exotics 1.5-2.0" U CB° $120.00 👍 4/10 Buy →
Big Z's 0.75-1.0" U CB° $124.99 👍 3/10 Buy →
Buddha Bugs 0.75" U CB° $125.00 👍 3/10 Buy →
The Mother of Spiders 0.75" U CB° $125.00 👍 3/10 Buy →
The Spider Room 1" U CB° $125.00 $60 $185 👍 3/10 Buy →
Exotics Unlimited USA Guarani 0.75-1.0" U CB° $125.00 $39 $164 👍 3/10 Buy →
Paladin Exotics Guarani 1.5" U CB° $139.99 +12% $50 $190 👎 3/10 Buy →
The Mother of Spiders 1.0" U CB° $150.00 +20% 👎 3/10 Buy →
ArachnoEden 3.0" ? $450.00 👍 1/10 Buy →
Westside Tarantulas Brazil ? U ? $450.00 👍 7/10 Buy →
Urban Tarantulas Brazil Female - 3in - beauties - super docile ? $675.00 $50 $725 👎 1/10 Buy →
Westside Tarantulas Brazil 3.5" ? $950.00 👎 1/10 Buy →
Westside Tarantulas Brazil 6.0" ? $2500.00 👍 1/10 Buy →
More in Grammostola
Grammostola rosea
Chilean Rose Hair
48 listings · $75
Grammostola pulchripes
Chaco Golden Knee
36 listings · $45
Grammostola quirogai
Uruguayan Black Beauty
19 listings · $85
Grammostola pulchra
Brazilian Black
17 listings · $100
Grammostola porteri
Chilean Rose Hair
4 listings · $75
Grammostola actaeon
Brazilian Red Rump
3 listings · $175
Grammostola anthracina
Tawny Red
1 listing · $150
Grammostola iheringi
Entre Rios
1 listing · $175
All Grammostola species →
How these numbers are worked out — market price, deal grades, and what they do not mean

Market price is a trimmed median of recent asks for a species — the highest and lowest are dropped before the middle is taken, so one unusual listing cannot move it. Below four asks there is nothing safe to trim, so it is a plain median.

A deal grade compares like with like. A listing is scored against others of the same species, same sex group and same size bucket — never against the species as a whole. A 1" unsexed sling and a 5" confirmed female are different markets, and blending them is how a fair price starts looking like a bargain.

Graded against history, not against today's shelf. The comparison is every ask ever recorded for that group, counted once per listing rather than once per day it sat unsold. Grading against whatever happens to be in stock right now would let a single low-priced arrival drag the median down and re-grade every other seller — a race to the bottom, which is not something a price tracker should cause. Where there is not yet enough history, the live listings are used and the page says so.

The badges:

  • 💎💎 at least 40% below that comparable median — or 20% below and also an all-time low.
  • 💎 20–40% below.
  • 👍 within about 10% of it.
  • 👎 more than 10% above.

Those thresholds are deliberately wide. The same animal at the same size routinely spans about 2× between the lowest and highest seller, so "20% below average" describes an ordinary listing rather than a find.

What these numbers are not. FangTrack sees asks, never sales — nothing here is a record of what anything sold for. A small number of sellers who specialise in premium display specimens are excluded from the calculated figures because their asks are not representative; their listings still appear. Private collection uploads never affect any public number. Shipping estimates are the vendor's stated flat rate added to the ask, not a checkout total.

A grade is information, not advice. Condition, provenance and how well a seller packs a live animal are worth more than a few dollars, and none of them are in the price. More on how this is calculated →