Wanting to try native eelgrass again (failed at my 2 previous attempts). Am I correct that the species should be Vallisneria americana? I tried a commercial supplier and a red variant graciously sent to me by a Pond Boss member which I tried in three different bodies of water and lost them all. I now have a pond with very clear water but a clay bottom and would like to try again. I would like to try the most aggressive and large variant. Does anyone have a suggestion for a good commercial supplier with which they have had success? This time I will fence off the planting with chicken wire in the hopes of discouraging critters from eating it. Will it survive in clay? Thank you in advance for any help.