tropical fish
Refers to colorful freshwater or saltwater fish kept in aquariums, typically from tropical regions.
彼は部屋で熱帯魚を飼っている。
He keeps tropical fish in his room.
熱帯魚の水槽の掃除は意外と大変だ。
Cleaning a tropical fish tank is surprisingly hard work.
When I was a child, we kept tropical fish at home.
I put a large tropical fish tank in the living room.
Colorful tropical fish are swimming in the tank.