I have found that stonerollers readily eat filamentous green algae, as long as
it isn't too long. I have not gotten them to eat huge amounts of
cyanobacter, but they keep it from forming if they go in the tank before the
cyanobacter takes over.
In the creeks I catch the stonerollers in, they seem to be eating the
tan-brown slime that covers the rocks. Leastwise, that's all that's in the
creek and that's what come out the other end when they get home in my tank.
Geoff Kimber
Lexington,KY
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