This is one of those baby shows that is free on YouTube with episodes posted every week that you have probably never seen air on actual TV. You would expect it to be bad based off of that, but it's actually a really good baby show. The visual style is... okay. It does what it needs to. It is probably the best animation you can get out of a show with this level of obscurity and disposability. Xilam, the studio responsible for it, seems to specialize in taking shows with passionate creators that aren't quite working with the big names yet and giving them a good and just treatment.
This show is about a mermaid, her shark boyfriend, and an animal that attempts to eat her. It is reminiscent of slapstick comedy like The Looney Tunes or Tom and Jerry. Humor wise, it is surprisingly funny. Sometimes it can get a good laugh out of you and have unexpected (and somewhat offbeat) turns. It has a handful of creative bones in it, and you can tell at least a few of the people making it cared about it at least little bit. There is a sharp increase in general show quality in season 2, and season 2 and 3 are the best of the show.
It is very hyperactive and attention grabby, though. The constant, FOP style of music use and sound effects can be a turn off for some. Also, I'm not sure what was trying to be achieved with the theme song.
It is a show for very small children, but it has a certain simplistic charm, and I ended up admittedly liking it after watching. Compared to the sludge that's on YouTube nowadays, it is one of the best things your kid could mindlessly click on.