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Grammostola actaeon

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Brazilian Red Rump
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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 $175, with 3 live listings across 3 sellers and a lowest ask of $139.

Large, dark, with rust-coloured setae over the abdomen, from southern Brazil and Uruguay, and one of the bigger animals in a genus that mostly runs moderate.

Terrestrial, burrowing when young, calm without being inert, and slow growing in the way everything in this genus is. It handles cooler conditions than most tropicals want.

Lowest Ask
$139
best value listed now
Market Price
$175
trimmed median, recent asks
All-Time Low
$78
seen across all crawls
90-Day Range
$78–$930
low to high
Live Listings
3
at 3 vendors now
Rarity
Ubiquitous
1/10 · seen at 6 vendors ever
Prices as of the last crawl — 8 hours ago ()
The white marker shows where today's best-value listing sits between the lowest and highest price ever recorded. Liquidity: 130 listings / 90d · 6 vendors ever
$78 all-time low best value now: $139 $930 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 — 6 listings · click a row to open the seller's page
3 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
TyDye Exotics 💎
$139 ❓ shipping
1.0-1.5" U CB View listing
The Spider Room 👍
$175 $235 landed
1"-1.5" U CB View listing
Exotics Unlimited USA 👍
$175 $214 landed
1.0-1.25" U CB View listing
Westside Tarantulas
$299 ❓ shipping
Urban Tarantulas 👍
$350 $400 landed
babies - super well established 8 month old babies U CB View listing
Urban Tarantulas 👍
$2350 $2400 landed
Females - 5in - Super beautiful DISPLAY specimens - F'in wow! View listing
SellerSizeSexSourceAskShippingLandedDealRarity
TyDye Exotics 1.0-1.5" U CB° $139.00 -21% 💎 5/10 Buy →
The Spider Room 1"-1.5" U CB° $175.00 $60 $235 👍 5/10 Buy →
Exotics Unlimited USA 1.0-1.25" U CB° $175.00 $39 $214 👍 5/10 Buy →
Westside Tarantulas 1.5" U CB° $299.00 +71% 👎 5/10 Buy →
Urban Tarantulas babies - super well established 8 month old babies U CB° $350.00 $50 $400 👍 5/10 Buy →
Urban Tarantulas Females - 5in - Super beautiful DISPLAY specimens - F'in wow! ? $2350.00 $50 $2400 👍 1/10 Buy →
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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 →