The world's fastest texter Craig Crosbie tapped out a tough 160-character message in 48 seconds.
He's obviously really good at spelling because the message was:
The razor-toothed piranhas of the genera Serrasalmus and Pygocentrus are the most ferocious freshwater fish in the world. In reality they seldom attack a human.
The CBBC Newsround Online team took between 2m 35secs and 4m.
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