I really like that an indoor rainforest at a zoo mentions the specific plant species present, as well as some interesting facts about them. When I go to a zoo, and I see something about a rainforest, or a savanna, or a coast, I want to see representation and information on the whole ecosystem and not just a few charismatic predatory or megafaunal species.
If I were to be nitpicky about the selection of fish, it would be that it seems like something you can find in a pet store, but fish are still important parts of Neotropical rainforest ecosystems, and I think with the thousands of species of fish in the Amazon, as well as other unique aquatic ecosystems in South and Central America, some which also have a high diversity of species, that showcasing aquatic life is important.