Growing Sea Life Characters

Easily grow an underwater scene with these foam sea life creatures! Soak them in water to increase their size in just hours. Make a low-maintenance more

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Product Details

Easily grow an underwater scene with these foam sea life creatures! Soak them in water to increase their size in just hours. Make a low-maintenance aquarium in a small bowl or tank with these kids' toys - youngsters love watching these turtles, fish and more stretch and swell before their eyes. They're a great bonding activity for you and your child. These swimmers also make fun party favors and birthday party activities. Hand them out to students as keepsakes from class trips to the zoo or aquarium. (4 dozen per unit) 3/4" - 1 1/4" Soak 24 - 48 hours for full size. © OTC

Item Number:



Small parts. Not for children under 3 years.

Product Specs

  • Unit of Measure: 48 Piece(s)

Ratings & Reviews

Rated 5 out of 5 by from Great purchase Love these things! The kids will love them, too! We put one in a glass of water and we were amazed at how large it got!
Date published: 2017-06-03
Rated 4 out of 5 by from Great activity We used this product to do a science experiment. The students really got into it, we compared the size of their sea animal each day and they loved it. The bonus was to get to take it home and show it to their parents.
Date published: 2015-07-01
Rated 2 out of 5 by from Don’t grow very much I bought these for a pre-k class project. We placed them in water overnight and couldn’t really tell if they’d grown the next day. It would have been a much more exciting experience if they had grown more.
Date published: 2019-05-14
Rated 1 out of 5 by from At first excited, then disappointed It took about 48 hours to swell the seahorse sea creature and once out of the water, it began to shrink. I would not buy these again and I found out that since i opened the package and tried one, they are non-refundable. Otherwise, they are cute and a lot of them for the price. I was looking forward to sharing them with my Sunday School class.
Date published: 2018-10-17
Rated 4 out of 5 by from Sea Life I just received these growing sea life characters. I can't wait for the kids to look at them and me telling these kids that they will grow in a manner of hours in water.
Date published: 2018-02-14
Rated 5 out of 5 by from Good product Bought these for my son to pass out at school for his birthday. I was nervous after reading the reviews, but we tried 3 of them and they all grew. The only thing I didn't like was there were no instructions. I added a little sticker to each of them that said, " Put me in water for one or two days. Watch me grow and be amazed!"
Date published: 2017-03-01
Rated 3 out of 5 by from Good Good for the quantity that you get. They are really tiny though so they didn't fill the good bag up much. But the kids have fun with them
Date published: 2017-01-20
Rated 1 out of 5 by from So dissapointed! These do not grow at all!!!!!!!!!!!!! we left them in water for 2 days and the only thing that we noticed was the water getting dirty. It was such a disappointment!
Date published: 2016-08-15
Rated 1 out of 5 by from No "growing" I got these to use as surprises inside a craft. I tested them first, though, and they do not grow. I obviously won't be able to use them now. I'm just disappointed I'll have to go find an alternative because there is no time for shipping.
Date published: 2016-04-19
Rated 1 out of 5 by from Not purchasing this again Several of them have been in water for 3 weeks now and are still the same size as when they came out of the package. Very disappointed - as was my birthday girl.
Date published: 2016-02-19
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Questions & Answers

are these pieces individualy wrapped?

Asked by: piece
Answered by: Omiteo
Date published: 2017-04-01

When taken out of the water do they go back to original size?

Asked by: lucybugs
Yes they do, but much like the growing it takes time. Even in Albuquerque with less than 10% humidity on any given day it takes two to three days to reduce back to original size. For the commenters saying they don't grow, its not instantaneous. If you want instantaneous, i'd recommend custom made sponges. these are a hydroscopic polymer and work best in room temperature DISTILLED water. DO NOT USE TAP WATER. Tap water tends to have some level of mineralization which will affect the growth rate and amount. the more minerals the slower the growth with less of a marked difference.
Answered by: JosefMelechPhD
Date published: 2018-09-15
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