can you put them in tap waer

Please know you can *NEVER* use tap water because of the chlorine and unfiltered substances that occur in the metal pipes which can kill every one of these creatures when they are born. In nature, they live in rain water that collects in pools on rocks in deserts. It has to be SPRING WATER from a bottle or filtered water. Thank you for caring about them

Mine got about as big as my ring - fingernail. We had to put him in a bigger container because he outgrew the smaller one. I fed him regular food and I/2 of a cherry tomato everyday.

How long do they live?

Well, they're supposed to live about six weeks, I think; but if you're sent a bunch of seed shrimp and water fleas (as I was) they will breed and multiply and pretty much live until you kill them.

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Smithsonian Prehistoric Sea Monsters

Product ID: 253815593

Details

Size
23x17 inches
Brand
Smithsonian
Theme
Animal
Age range (description)
Kid
Item dimensions L x W x H
26.7 x 8.9 x

📏23" x 17" vibrant educational poster

🔬Authentic 220-million-year-old species revival

🦀20x growth from egg to prehistoric pet

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Description

🦞 Hatch History. Grow Wonder. Own the Ancient Sea.

MASSIVE 20 X GROWTH - Watch your triops grow over 20 times their original size—instant gratification meets natural wonder.
STEM POWERED LEARNING - Dive into science, technology, engineering, and math with a hands-on prehistoric adventure.
COMPLETE READY TO USE KIT - Includes aquarium, sand, eggs, food, and a stunning color poster—no assembly or batteries needed.
HATCH YOUR OWN PREHISTORIC PETS - Experience the thrill of bringing ancient sea creatures to life right on your desk.
EXCLUSIVE SMITHSONIAN COLLABORATION - Own a piece of history with a kit backed by the Smithsonian’s authentic prehistoric expertise.

The Smithsonian Prehistoric Sea Monsters kit lets you hatch and grow triops, a 220-million-year-old species, up to 20 times their original size. This all-in-one STEM educational set includes an aquarium, sand, triops eggs and food, plus a vibrant 23" x 17" color poster, requiring no assembly or batteries. Perfect for curious minds aged 8 and up eager to explore prehistoric life firsthand.

Specifications

Product Dimensions	26.67 x 8.89 x 29.85 cm; 440 g
Manufacturer recommended age	8 years and up
Item model number	52041
Educational Objective(s)	STEM
Number of Puzzle Pieces	1
Assembly Required	No
Batteries Required?	No
Batteries Included?	No
tech_spec_battery_description_toys	No batteries required
Material Type(s)	Plastic, sand, triops eggs
Color	Sea Monsters
ASIN	B00200JX2O

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WS$703

Duties & taxes included

In stock

Sold byAmazon SamoaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Samoa.

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