mermaidscientist on "making my second Blog anonymous with no affiliation."

I would like to start a second Blog that has an anonymous User name that is not associated with my current Blog, Mermaid Scientist. Is there a way to do this through my account so that the new 2nd Blog in in no way publicly attached to my name and 1st Blog? Or do I need to register a whole new name, account and email that will have no affiliation with my current account?
Thank you for taking my question.
Claudia Makeyev