i do think they eat plants, but not that much, just a tiny here and there. . .they jut love to snap everything on their way, plants and fish. . .my big blue yabby almost snapped my glass catfish in to two. .. .luckily he survived and live till today^^. . ..
but let me remind u, some crayfish are plnted tank tolerant, meaning not all of the species love to destroy plants, although mostly do [such as Cherax destructor. . .got the name coz he loves to destroy]. .. .
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