Japanese killifish

This afternoon, my sister-in-law and niece came to my house. They were holding two plastic cups. When I saw them, I wondered what those cups for. Then, they told me that they wanted to take some Japanese killifish that my father keeps. I called him who was in his room, and they went to a garage where he has been keeping his fish. They stood in front of the fish tanks and happily chose which ones they took home. The cups looked a little small , so I quickly found a container with a lid and gave it to them. I hope they will take good care of fish.