Ceratium is a type of protist known as a dinoflagellate. He is the first protist that Aggi meets on her adventure in ‘Aggi and the Mystic Boots’. He is made of just one single cell and is really small, even smaller than one grain of sand!

As he is so small it is really hard for us to see Ceratium on his own but when the conditions are just right, he can produce lots more Ceratiums very quickly and in such large numbers, they can cause the sea to turn bright red!

On your trail answer sheet, enter ‘Ceratium‘ as the answer for The Forum Library QR code.

Which of Aggi’s friends will you find next?