Growing Tropical Fish Here are some colorful Tropical Fish that are guaranteed to impress! email to friend
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Here are some colorful Tropical Fish that are guaranteed to grow up to 300% when soaked in water! Be careful or someone will mistake them for a rare species and put them in the aquarium! Non-toxic and safe to touch, this collection of Growing Tropical Fish provides lots of fun science projects for everyone. Recommended for children ages 4 and up.

What's included?

10 Growing Tropical Fish, assorted colors

How does it work?

These growing Tropical Fish are really (don't tell anyone) made with superabsorbent polymers designed to absorb from 150-300 times their weight in water! Watch them grow before your eyes and learn about these super thirsty polymers along the way! The ocean was never so colorful!

*Use purified water for best results.

What does it teach?

Discover how thirsty polymers perform very important functions in everyday life. They're used in everything from baby diapers to environmental cleanup materials! Aside from their environmental and industrial uses, discover how different kinds of polymers help these "growing toys" keep their shape as they expand.