| July 16 |
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We had killifish and prawns in school biotope. |
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We put biology of the pond in a water tank together with water. Because we were cautious that shrimps jumped and did not fall, we had a hard time. |
| July 19 |
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We saw it after an interval of three days. The water was transparent. The quantity of water was good. |
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The killifish which we put inside swim lively. We gave food to them, they ate up soon. |
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Would you understand it? The root of the plant grows to a gravel part of the water tank. Three plants which we gathered colonized. |
| August 22 |
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Because the water of tank decreased, we added water.
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| December 27 |
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This is a movie of the water tank biotope. The outside is cold, but
the killifish swim well. |
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