Why do you think the landlord put up the fish there?

The landlord likely put up the fish as a unique decorative element to create a distinctive ambiance in the space, perhaps aiming to evoke a coastal or nautical theme. Additionally, it could serve as a conversation starter among tenants or guests, adding a quirky touch to the environment. Finally, the fish might also symbolize the landlord's personality or interests, reflecting a love for fishing or marine life.