The author has been keeping a baby medaka fish for about half a year. The fish has survived the winter, even though the water temperature has been low and the author has not changed the water. The fish seems to be getting nutrients from the water and is not losing weight. The author is happy that the fish has survived the winter and hopes that it will continue to do well.

The weather is getting colder and the author is worried about their goldfish surviving the winter. They are looking into different types of heaters to install in the goldfish tank. The author also describes the different types of goldfish they have, including red, black, white, and orange.

The author is happy to report that their medaka are doing well. They have updated the group planting that is displayed with the medaka and have been using a new water change method that has resulted in the medaka growing larger. The author is looking forward to trying the new water change method with the parent medaka when the baby medaka get a little older.

The author decorated their goldfish tank for Halloween and the goldfish seem to be enjoying it. The author also shared their experience of raising a white goldfish and how it has grown over time.

The turtle's new hideout is bigger than the old one and is made of a warm orange tile. The turtle used to dry its shell in the sunlight, but it stopped doing so when the tank was moved to a new location. The turtle now dries its shell on a saucer that was previously used for a potted plant.

3 The author decorated the killifish tank with Halloween ornaments. The decorations are very cute and the author is happy with them. The author also received three killifish, but the smallest one died. The remaining two are gradually getting bigger.

The author is planning to change the turtle's hideout because it is starting to look small. The turtle goes into the hideout to sleep and climbs up to dry its shell. The author thinks it is interesting to see the turtle in the hideout.

40cm The author made a biotope with killifish in a large circular container with a diameter of about 40cm and filled it with soil. The roundness of the container and the color of the soil make it look like miso soup when you take the photo. The aquatic plants are starting to look like seaweed and it looks delicious.