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The Original Sea-Monkeys - Worlds Only Instant Pet
Sea-Monkeys, tiny brine shrimp invented in the 1950s, remain in suspended animation until you activate them using the provided kit in their aquarium.
These creatures offer an exciting educational experience, allowing both kids and adults to witness biology in action. From hatching to growing, observing their life cycle in real-time is captivating for all ages.
They make an ideal pet for kids, teaching them valuable lessons about responsibility on a manageable scale.
Tips for Sea-Monkey Success
1. Water temperature: Check the temperature chart for the best hatching time. Warmer water (around 75-80°F) helps eggs hatch faster..
2. Egg anatomy: Some eggs have thinner shells and hatch quicker, while others have thicker shells and take longer. It's natural biological variation.
3. Healthy light: Put your tank near a window facing north for good, but not direct, light. This helps algae grow, which Sea-Monkeys eat.
4. Feeding: Only feed Sea-Monkeys when the water is clear. Too much food can harm them.
5. Evaporation: If you notice the water level decreasing in your tank, refill with bottled drinking water which is at the same temperature as the tank water.
MamaBear
2025-08-28 12:16:57
My kids are LOVING these! It was so fun checking every day to see if we could see any. Then we found them and they were super tiny. Then we thought they died for a while because we didn’t see them at all but lo and behold one day there they were growing and swimming all around. We have had them almost 2 months now and the kids have fun watching them grow. Maintenance is super easy as they are only fed once a week. We are not even close to running out of the food it came when either. I love that it came with all that we needed.
Katlyn Omaha, NE
2025-08-27 16:35:42
This is a super fun experiment! My son (8 years old) wanted this for his birthday. The sea monkies hatched and are thriving in their environment. Would definitely purchase again!
Customer
2025-08-21 14:33:16
Very disappointed 7 year old. The eggs never hatched and we followed the instructions to a T.
Marisha
2025-07-12 12:02:32
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Summer H.
2025-06-24 19:11:14
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Vanessa & Greg
2025-06-17 11:43:01
I bought this product (and Sea Monkeys on Mars) to share a bit of fun nostalgia with my high school students. We read an article about fairy shrimp materializing at Burning Man and my students had no idea what sea monkeys were. As a millennial, I wanted to share the excitement of watching these little swimmers materialize from dust that I remembered from my own youth. I bought two sets and set them up with different classes. The sea monkeys hatched within a few days and for the first month or so, there were lots (maybe 15-20?). We could watch them swim around their habitat and even were able to observe them mating and carrying egg sacs (and pooping). My students were amazed. A year later and there are still 4-6 guys swimming around and reproducing. We used distilled water and the purification drops provided, fed them the growth food once a week (there is still half a bag left from the original kit), and aerated the water daily with the pipette provided. We didn’t buy a fancy filter and did not clean the container when debris started to settle at the bottom, though we did continue to add fresh distilled water as it evaporated. Great gift and tons of fun!
Elijah M
2025-06-15 21:54:38
This product arrived in one day (Here in southern coastal California- wherever the closest Amazon Shipping center was, they must have had some of these on hand), the tank is sturdy and colorful, the egg and purifier (salt+egg) packets were dry and fresh, and in a little over 48 hours, I started noticing small hatchlings. It's been about 2 and a half days since then, and even more are hatching.Note that water temperature and the age of the eggs can vary hatching time by a LOT, and unless you've grown these guys before, you may mistake new hatchlings for inanimate specks for potentially 5+ days after putting in the eggs- it doesn't always work as fast as it did for me.10/10 would definitely recommend as a gift or for your own nostalgia.
Fire Medic Mama 25
2025-06-14 11:44:37
We weren't able to ever see any hatch.
Amelia-Beth
2025-04-23 09:42:04
For those comments that were 1 star, those people did not wait long enough for them to hatch. It’s not going to be an overnight miracle, people. You have to wait at least a week or two for the eggs to hatch AND you have to make sure they get plenty of oxygen in the tank for them to grow.
Danielle tan
2025-04-19 17:46:56
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Pam
2025-02-25 16:12:05
I think it’s so cute I am sure the kids will enjoy watching them
Shay
2025-02-19 13:44:50
My daughter was very excited for some sea monkeys but instead we got wet green eggs, which means they’re spoiled. So I would rate this a 0 if I could.
Algo Cerise
2025-02-07 10:40:38
I finally, after alll these years have sea monkeys! I've waited like 40 years for this moment. I'm basically the happiest girl at the homecoming dance rn. And yes I named them all !
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