a0k1n12357 https://blog.hatena.ne.jp/a0k1n12357/ いもじろうの雑記（Imojiro’s Notes） https://imojiro.info/ 池・アクアリウム (Ponds & Aquariums) 11_モルタル池 (Mortar Pond) 99_Featured 自作モルタル池の生体投入から5ヶ月。メダカの越冬や春の清掃、水路を遡上する様子を記録。 / [English included] Record of Medaka fish wintering in a DIY mortar pond and their spring activities. 190 <iframe src="https://hatenablog-parts.com/embed?url=https%3A%2F%2Fimojiro.info%2Fentry%2F2025%2F05%2F06%2F172536" title="自作モルタル池の越冬と春の様子 / Wintering and Spring in DIY Mortar Pond - いもじろうの雑記（Imojiro’s Notes）" class="embed-card embed-blogcard" scrolling="no" frameborder="0" style="display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;"></iframe> https://cdn-ak.f.st-hatena.com/images/fotolife/a/a0k1n12357/20250506/20250506165621.png Hatena Blog https://hatena.blog 2025-05-06 17:25:36 rich https://imojiro.info/entry/2025/05/06/172536 1.0 100%