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in series 3 Cleo is 16 Emma is 18 and RIKKI IS ... 17
cleo squibb is 8 yrs old
Mermaids are as real as your imagination can make them. They can be as old as you want them to be.
Cleo De Nile is 5842 years old
mermaids get their tail any time thy chande to mermaids
Cleo Odzer is 61 years old (birthdate: April 6, 1950).
In season 1 they're 15-16, in season 2 they're 16-17 and in season 3 they're 17-18.
Dame Cleo Laine is 83 years old (birthdate: October 28, 1927).
US actress Cleo Massey is 24 years old (born November 19, 1993).
Cleo Moore was born on October 31, 1928 and died on October 25, 1973. Cleo Moore would have been 44 years old at the time of death or 86 years old today.
Richard Ream, aka Rikki Rockett, is 56 years old (birthdate: August 8, 1961).
Emma's family is going around the world and leaves and Emma is later replaced by Bella, who has been a mermaid since the age of 9 you know they should have shown her leaving because someone might not like the new girl they should of done a vote like who stays. look i like this answer but i've seen the show 30 times in a row and at the end were the girls through charloette into the moon pool they should of had it to were they said good bye to Emma and watched as she left. But i heard that in season 4 she comes back and they through a surprise party for her. And yes im a 16yr old guy who absolutly loves h2o since it first came out. :) Actually, there is no season 4.