...I noticed that right away, and mentioned it in my post that started this thread, though I couldn't think of the name of that Aussie show at the time, and even suggested 3 Tails is likely inspired by it. This show may be an attempt by these girls to add their own twist to a type of story that is dear to the collective hearts of young girls. The girls-as-mermaid theme is very popular throughout the growing medium of online shows created by young girls, but ya know what? I don't mind, because not only do the girls realize this type of show gives them the excuse to show off their natural beauty, but it's a very popular meme amongst girls, and I don't mind seeing several interpretations of the theme by different talented girls :-)