I love观赏 fish - goldfish, koi, tropical fish, marine fish, crystal shrimp, aquatic plant cultivation, and aquarium landscaping.
(Note: "观赏" is often translated as "ornamental" in this context, so a more natural English translation might be:)
I love ornamental fish - goldfish, koi, tropical fish, marine fish, crystal shrimp, aquatic plant cultivation, and aquarium landscaping.