Leeches might seem like relics of a bygone age of medicine, but they haven’t outlived their usefulness to people yet. The freshwater leech Helobdella austinensis can eat its weight in snails every day ...
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Snail invasion in my tank - deploying yoyo loaches
A sudden snail explosion in the aquarium can quickly become a nightmare for fish keepers. In this case, the tank became filled with dozens of small snails that began multiplying faster than expected.
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