I enjoyed this show when I was a kid - - screening as it did daily on the Sandy Becker Show (read COMMENT section for exact dates and times.) I even made all the fish marionettes out of cardboard. One time when my dad was coming home from work on the subway, I stood over the entrance and when I saw him coming up the stairs I lowered the marionettes over the top to greet him. The ascending applauded.
My younger bro had a major crush on Minerva the Mermaid.