The Mermaid shows that are similar to each other

On Mermaid show is The 3 tails,Mako Mermaids, H2O and I think there is Alien Mermaids. On the post of these different show that characters look almost the same even if their are on different shows.

H2O was a show on Nickelodeon and TeenNick there where three girls who talked in a British accent  and they turned into mermaids. The creators of Mako Mermaids are Jonathan M. Shiff,Sam Carroll,Amy Purton-Long and Kristen Souvlis. Their first episode was in July 26, 2013 and their final episode was in August 28, 2016.

I never watched that show before but it's probably a good show. It has been on channels Like Network Ten and Eleven.

Now I know H2O was a TV shows about girls who turn into Mermaids. H2O is an okay show but I am not a big fan of that show But I do not hate that show ether.  Jonathan M. Shiff is the creator of H2O just add water.

Their first episode was in July 7, 2006 and their last episode was in April 16, 2010. This show has also been on the channel called Network Ten.