Bill look up Eleocharis Baldwinii
outdooralabama.com and there is a picture of it next to a dime.
This stuff will grow in 6’ of water in matts. Will grass carp eat it?
It's definitely not on their "preferred food" list, but then neither are cattails and a customer has TGC in his pond that are working on the cattails. Yes, he has way too many of the TGC in his pond. BUT, he wants absolutely 0 weeds in his pond, so all I can do is advise and they make the final decision - it's their pond after all.