How Do Tarantulas Grow? Understanding All 6 Life Stages

Did you know that some tarantulas can live longer than your family dog? These fascinating creatures, which have roamed Earth for over 150 million years, go through one of nature’s most remarkable growth processes.

 

From tiny eggs smaller than a grain of rice to impressive adults with leg spans reaching 11 inches, tarantulas transform through a series of dramatic molts.

 

In this guide, we’ll explore the incredible journey of how these eight-legged wonders grow from delicate beginnings into magnificent adult spiders, and learn how to support them through each stage of development.

 

 

Watching your tarantula molt for the first time is a fascinating experience that is key to understanding tarantula molting

 

What’s Coming Up? (Spoiler Alert!)

  • A magical transformation story that beats any superhero movie
  • All the juicy details about growing up spider-style
  • Tips and tricks I’ve learned from raising my own eight-legged friends
  • Some “web-tastic” facts that’ll blow your mind

 

The Beginning: Tiny Eggs with Big Dreams

Remember those Kinder Surprise eggs? Well, tarantula eggs are like nature’s version, but way cooler! Inside that silky egg sac (think of it as a spider’s sleeping bag), tiny tarantulas are developing for about 45-60 days. That’s shorter than waiting for the next season of your favorite show!

 

“The egg stage is super important. The temperature needs to stay between 75-85°F for healthy babies to develop,” says Dr. Maria Rodriguez, who has studied tarantulas for 15 years.

 

I once watched my friend’s tarantula’s eggs hatch – it was like watching a miniature spider birthday party!

 

Baby Steps: Welcome to the World, Little Ones!

When these tiny spiderlings first hatch, they look like living cotton balls with legs! They’re about as big as this dot (.) on your screen. For their first week, they’re like teenagers raiding the fridge – living off stored food in their bodies.

 

Then comes their first molt – imagine taking off a full-body sock! This is when they start their journey to becoming proper mini-tarantulas.

 

Growing Pains: The Spiderling Years

Just like human kids shooting up in height, young tarantulas have their own growth spurts:

  • First 6 months: 6-8 molts (that’s like changing clothes every month!)
  • 6-12 months: 4-6 molts (slowing down a bit)
  • 1-2 years: 3-4 molts (teenage years, spider style)

Each molt is like getting a whole new wardrobe, but instead of just new clothes, they get a whole new body! They grow 25-30% bigger each time – imagine if we grew that much in a few days!

Age Size Feeding Schedule
6-12 months 15-80mm Every 3-5 days
1-2 years 80-120mm Every 5-7 days

 

The Awkward Teen Years: Juvenile Stage

Being a juvenile tarantula is like being in middle school – everything’s changing!

 

My tarantula Rocky went through this stage last year, and let me tell you, it was like watching a spider version of a coming-of-age movie.

 

Almost There: The Sub-Adult Phase

This is like spider college years! They’re almost grown up but not quite there. It’s when boy spiders start showing off (getting special hooks on their legs) and girls focus on getting bigger. It’s like spider prom season, but with more molting and less dancing!

 

For more fantastic details about telling boys from girls (it’s harder than you’d think!), check out the American Tarantula Society’s guide.

 

Finally Adulting: The Grown-Up Spider Life

Welcome to spider adulthood! Here’s the scoop:

  • Female tarantulas are like the Queen Elizabeth of the spider world, living 15-25 years
  • Males are more like James Dean – living fast and dying young (3-7 years)
  • Females keep their “wardrobe updates” (molting) going yearly
  • Males are like “one suit forever” kind of guys – no more molts after becoming adults

 

The Great Wardrobe Change: Molting Magic

“Molting is like taking off a tight jacket. The tarantula needs space and peace to do this safely,” explains Tom Wilson, who has bred tarantulas for 20 years.

 

I remember when Luna had her first molt under my care – I was more nervous than a long-tailed cat in a room full of rocking chairs!

 

Taking Care of Growing Tarantulas

Your spider needs different care as it grows. Here’s what to give them:

Small Spiderlings Need:

  • Small home (2x2x2 inches)
  • Food every 2-3 days
  • High humidity (65-75%)
  • Warm temperature (75-82°F)

 

Bigger Spiders Need:

  • Larger home (8x8x8 inches or bigger)
  • Food every 5-14 days
  • Less humidity (55-65%)
  • Similar warmth (70-85°F)

 

Different Spiders, Different Growth

Some tarantulas grow faster than others. Learn about common pet species in this table:

Type of Tarantula Time to Grow Up Adult Size
Rose Hair 4-5 years 120-140mm
Mexican Red Knee 3-4 years 140-170mm
Brazilian White Knee 2-3 years 160-180mm

 

Want to learn more about specific species? Visit the World Spider Catalog.

The Bottom Line (Spider Style)

Raising a tarantula is like watching a tiny eight-legged miracle unfold. Each molt is a reminder that nature has some pretty awesome tricks up its sleeve.

 

Whether you’re a first-time spider parent or just curious about these fascinating creatures, remember: every tarantula is unique, just like every pet parent’s journey.

 

Fun Fact: If tarantulas had a yearbook, “Most Likely to Shed Their Skin in Style” would definitely be a category!

 

Remember folks, in the world of tarantulas, patience isn’t just a virtue – it’s a necessity. These little guys are teaching us that good things come to those who wait… and molt!

Russel

They say I'm the crazy pet person in my friend group - guilty as charged! Between writing care guides and collecting exotic pets, there's never a dull moment!