gary smith wrote:

What is "grass carp" ??

It's always hard to be sure when you're using "common" names and the
poster's in the UK and I'm in Canada, but in N. America "Grass carp"
generally refers to a "Triploid carp", referring to the fact that they have
an extra chromosome, rendering them sterile. A good thing in a carp that
can reach 150lbs, iirc.

See http://www.ecy.wa.gov/programs/wq/pl...t/aqua024.html
--
derek