Has anyone seen anything like this? It is the size of a pepper fleck, and swims exactly like a moon jelly and can fight the tank current to hop around. When it lands, it collapses into a small circle, then it uses its skirting to flap around like a jelly for another few minutes, have seen about 10 of these and had never seen one before in nine years and through plagues and plagues of regular common flatworms
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