For the Artic, I wouldn't add little penguins as they are from Australia and Tanzania so putting them in a snowy exhibit wouldn't be best
I have never seen or heard of those two crabs mixing and I know one or both are aggressive so I would separate them but they do well with other large fish
The Dragonfish worry me because they are larger than the silverfish, but if there are any good examples of these two mixings than it should be fine
A reminder that when a zoo or aquarium gets jellyfish they actively have to participate in jellyfish breeding so keep that in mind, that being said I would choose comb and moon jellies as they are common, easy to care for, and moon jellies can be touched. Also when designing the exhibits don't forget that jellies need circular tanks with proper flow and that could ruin a cave aesthetic so maybe an iceberg?
I have never seen or heard of those two crabs mixing and I know one or both are aggressive so I would separate them but they do well with other large fish
The Dragonfish worry me because they are larger than the silverfish, but if there are any good examples of these two mixings than it should be fine
A reminder that when a zoo or aquarium gets jellyfish they actively have to participate in jellyfish breeding so keep that in mind, that being said I would choose comb and moon jellies as they are common, easy to care for, and moon jellies can be touched. Also when designing the exhibits don't forget that jellies need circular tanks with proper flow and that could ruin a cave aesthetic so maybe an iceberg?
