As a Fish Keeper I love seeing a mangaka who is knowledgeable on the hobby a bit and I am also grateful to the translator for including info on the puffer and cories, as well as the pit falls and challenges keeping them can have. I have linked another series that is pretty biologically accurate but is more about aquariums rather than fishkeeping! Happy fishy boy reading! >u<
https://www.mangago.me/read-manga/ero_yume_aquarium/
Doraneko to Sakana