Aquarium guide
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| Physas |
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Physas
Their spiraled shell is markedly less elongate than that of Malayan snails and
they are also slightly bigger. They do not play an important role in the control
of unwanted algae. As they reproduce rapidly, it is best not to introduce them into
an aquarium. Size: 1-2 cm.
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КРАСНЫЙ СУЛИН (до 1925 Сулин) , город (с 1926) в Российской Федерации, Ростовская обл. Железнодорожная станция (Сулин). 43,2 тыс. жителей (1992). Металлургический завод, пищевая промышленность. ГРЭС. Основан в 60-х гг. 19 в.