Melopoeus minax "Big Black" (Thai Black Earth Tiger Tarantula) 0.5-0.75" FREE AFTER $150 SPENT
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Description
Melopoeus minax "Big Black" (Thai Earth Tiger Tarantula)
The Thai Earth Tiger is one of the largest Earth Tigers in the hobby, and the nickname "Big Black" tells you everything you need to know. This heavily built fossorial species out of Thailand features a deep, rich jet-black body with warm gold banding at the leg joints and subtle dark striping across the abdomen. Not flashy — just bold, dark, and imposing. Adults carry serious mass and presence, and a full-grown specimen at the burrow entrance is one of the more striking sights in an Old World collection. A true burrower with a heavy webbing habit and lightning-fast defensive response, this is a hands-off display species for experienced keepers who appreciate natural behavior over interaction. Recently reclassified from Cyriopagopus to Melopoeus per the 2026 World Spider Catalog revision. Grab this Old World fossorial tarantula for sale today if you want a large, bold Earth Tiger that commands attention in any collection.
Why do hobbyists keep Melopoeus minax "Big Black"?
- Coloration: Deep jet-black body with warm gold banding at the leg joints and subtle dark abdominal striping. Simple, bold, and striking in person.
- Adult Size: One of the larger Earth Tigers in the hobby, reaching 6 inches and beyond. The "Big Black" nickname is earned — this is a genuinely large, heavy-bodied animal.
- Heavy Webber: This species webs its burrow entrance extensively, creating visible tunnel structures that make for an active, interesting display even when the spider stays out of sight.
- Feeding Response: A reliable nocturnal ambush predator. Takes prey confidently at the burrow entrance and is one of the more consistently feeding Earth Tigers when properly established.
- Fossorial Behavior: A true deep burrower that will excavate serious tunnel systems given sufficient substrate depth. Set it up right and watch it do exactly what it would do in the forests of Thailand.
How should Melopoeus minax "Big Black" be kept?
- Adult Size: Reaches 6 inches and beyond. One of the largest Earth Tigers available in the hobby, with the heavy build and mass to match the name.
- Enclosure: Fossorial setup with 2 times the leg span as footprint and 3 times as height, with substrate depth 2 to 3 times the leg span to support deep stable burrows. Given the adult size, this means a serious depth of substrate. A secure lid is non-negotiable.
- Temperature: 75 to 80 degrees F. Stable room temperature works for most keepers. Avoid sustained temperatures above 85 degrees F.
- Humidity: Moderate to high. Keep lower layers of substrate slightly damp while allowing the top to dry. Never swampy. The moisture gradient gives them the microclimate choice they rely on in the wild.
- Water: Provide a water dish near the burrow entrance. Fossorial species benefit from ambient moisture and will use a dish placed at substrate level.
- Diet: Crickets, roaches, and other feeders sized appropriately to the carapace (head). Feed weekly for spiderlings, every 7 to 10 days for adults. A large adult can take substantial prey.
- Temperament: Very defensive, fast, and prone to bolting. Best suited for experienced keepers. This is a display and observe species.
Are there any additional notes or considerations?
- Substrate depth matters: Needs depth of soil and good airflow to get fresh air into burrows and prevent mold growth. Given the adult size, plan for 8 to 12 inches of packable moisture-retaining substrate.
- Settling in: True burrowers will dig straight down given sufficient depth. A starter burrow against the enclosure wall helps them establish faster.
- Visibility: Less disturbance equals more surface visibility. Most specimens will be seen at the burrow entrance regularly once they feel secure.
- Taxonomy note: This species has gone through three genus changes recently — it was widley known under Haplopelma, moved to Cyriopagopus, and now reclassified to Melopoeus per the 2026 World Spider Catalog revision. Same animal, updated science.
- Captive bred: Our animals are 100% captive bred.
Listing Notes
This listing includes multiple size options. Animals are unsexed, there is approximately a 50/50 chance of male or female on most species.
How our rewards and freebies work
How does the Exotics Unlimited rewards program work?
Our rewards program has three parts and they work together instead of cancelling each other out. Subscribe to our email list for free and you get 10% off invertebrate orders as an ONYX member, climbing to GOLD at 13% once your lifetime spend passes $1,000 and PLATINUM at 15% past $3,000. Any single pet invertebrate order over $1,200 takes 20% off on its own, whatever tier you are. The one exception is items already marked down for a weekly deal or an event special. Those say so in the title, and the discount is already built into the price. If your total after that discount reaches $300, shipping to a FedEx facility for pickup is free. And your freebie credit is built from that same total, so you are choosing free animals on top of both. Feeders and supplies get a flat 5% for subscribers, separate from the invertebrate discount.
A $340 invertebrate order is the clearest way to see it. Your 10% brings it to $306, that clears the $300 mark so facility pickup is free, and that same $306 is your freebie credit to spend on animals you pick yourself. One order, all three benefits. Full tier breakdown on our VIP program page.
What is a freebie tarantula and how do I get one?
Exotics Unlimited gives away free tarantulas, true spiders, scorpions, and centipedes with qualifying invertebrate orders. Most shops call this a free gift with purchase. Ours works differently because you choose the animal instead of us picking one for you.
Every freebie says so right in its title, like FREE AFTER $150 SPENT. That line is what makes something a freebie, so if a product does not carry it, it is not one. Older freebie listings stay up around the site after they sell out, so the Freebies page is the one to shop. It is where the current lineup lives.
Your freebie credit equals your pet invertebrate subtotal after discounts and before shipping. Dry goods, feeders, supplies, and enclosures do not count towards your credit.
How much do I have to spend to get a free tarantula?
Freebies start at just $25. Free tarantulas and other invertebrates start at $50. Every freebie shows its cost in the title: FREE AFTER $150 SPENT means you need $150 in credit. Thresholds range from $25 up to $800 for rare species. Not looking for another animal? We also offer freebie merchandise like stickers, so there is always something to claim.
Can I get multiple free tarantulas in one order?
Yes. There is no cap on how many you take, only on what they add up to. Mix and match anything you want, including multiples of the same species, as long as their combined cost fits your freebie credit. With $350 in credit you could take one $350 species, two $150s plus a $50, or seven $50 spiderlings. Freebie programs across the hobby often limit you to one per species or one per spend tier. Ours does not work that way. If your credit covers it, take as many as you would like.
What makes your rewards program different from other tarantula shops?
Most rewards programs make you pick one: take the discount or take free shipping. Ours run together, and freebies sit on top of both. That is the part people notice first.
The rest of it: subscribing is free and gets you 10% off invertebrates for as long as you stay subscribed rather than a one-time welcome code, and it climbs to 13% and 15% as your lifetime spend passes $1,000 and $3,000. You choose your own freebies instead of receiving whatever a shop decides to send. And there is no cap on how many you take, only on what they add up to, where most reward and loyalty programs limit you to one free item per order or one per spend tier.
Freebie thresholds start at $25 and free animals start at $50, so the program is doing something on nearly every order rather than only on big ones.
Do I really get 10% off just for subscribing to the email list?
Yes. Subscribing is free and it takes 10% off every pet invertebrate we sell, tarantulas, true spiders, scorpions and centipedes included. It stays active for as long as you are subscribed. Most shops hand you a one-time welcome code. This one keeps working.
From there it climbs with your lifetime spend, 13% past $1,000 and 15% past $3,000, and any single order over $1,200 takes 20% regardless of tier, with nothing to claim or remember. It applies itself at checkout and you do not need to be logged in for it to work. Subscribers also get 5% off feeders and supplies. That one is a flat 5% for every subscriber and does not climb with your tier, but it applies for as long as you stay subscribed just like the rest. Items already marked down for a weekly deal or an event special are the one exception. The discount is built into the price on those, so a subscriber discount does not come off on top. You will always know which ones they are because it says so right in the title, the same way freebies do.
Does my VIP discount change my freebie credit?
Your discount comes off first, and the total after it is what builds your freebie credit. So a $340 invertebrate order at 10% leaves $306, and that $306 is both your freebie credit and enough to clear the $300 free shipping mark.
That is worth knowing when you are close to a threshold, because the number that counts is the one after your discount. You never have to work it out yourself though. The calculator on the Freebies page always shows your real credit.
Why does it say I don't qualify for my freebies?
You can add any freebies you want to your cart, but you will need enough freebie credit to cover all of them. If you are short, the calculator on the Freebies page shows exactly how much more to add in pet invertebrates.
Freebies will still show as $0.00 in your cart either way. That is just how they are priced. What matters is whether your credit covers their total cost before you check out. If it does not, we will reach out to sort it before your order ships.
What happens if I check out with more freebies than I qualify for?
Do not worry, we will reach out as soon as possible to help you get your freebies sorted before your order ships. We will work with you to either adjust your selection or add to your order to cover them. We never remove or swap your freebies without letting you know first.
To avoid the back-and-forth, check your freebie credit in your cart before checking out. We will always show you exactly where you stand.
What happens if my free tarantula arrives DOA?
Freebies are covered exactly like paid animals. There are two reporting windows and they buy different things.
Report within 2 hours of delivery and we reship. That is the full guarantee. A fast report tells us the problem came from transit, and it gives us the best shot at making it right properly.
Report within 24 hours and we replace it on your next order. You are still covered, the replacement just travels with your next shipment rather than going out on its own.
The 2 hour window is for FedEx facility pickup. Home delivery is 30 minutes, because by then the package has spent longer on a truck that is not temperature controlled. Either way, tell us the moment you see a problem rather than waiting.