I'm gonna ignore any educational aspects of this show and am just going to describe my experience with in this review.
Back when I was younger, and in the target audience of this show, I watched it because I liked the idea of a show with the characters as merpeople underwater. The problem is that they don't really do anything with it. Except for maybe a few scenes there is no reason why the characters are part fish. I remember marathoning this show looking for an episode where they did something interesting with the environment. I eventually stopped because I got annoyed that every episode is the same thing. I get that this show is the type that tends to have very similar set ups for every episode, but there are almost no variations in the set ups. Maybe in the newer seasons (at the time I watched this there were maybe two seasons) they change it up, but from what I remember every episode was beat-for-beat the same time. I will never understand how some kids don't get bored when every episode of a show is the same thing over and over.
Back when I was younger, and in the target audience of this show, I watched it because I liked the idea of a show with the characters as merpeople underwater. The problem is that they don't really do anything with it. Except for maybe a few scenes there is no reason why the characters are part fish. I remember marathoning this show looking for an episode where they did something interesting with the environment. I eventually stopped because I got annoyed that every episode is the same thing. I get that this show is the type that tends to have very similar set ups for every episode, but there are almost no variations in the set ups. Maybe in the newer seasons (at the time I watched this there were maybe two seasons) they change it up, but from what I remember every episode was beat-for-beat the same time. I will never understand how some kids don't get bored when every episode of a show is the same thing over and over.