Water Gardening: hi every one . newbie here needs advice , 1 by iris28

iris28 wrote:
how many lotus can fit in this space . its about knee high when i stand in it . and maybe 4-5 x 3 i didnt measure . i want to try the idea in this thread . http://davesgarden.com/community/forums/fp.php?pid=6001011

i have a seed in water right now filed and everything . but the other seeds in the batch arnt viable . they were just powder inside . so i ordered some more .
is it to late in the season to order tubers . and if it is how many of the seedlings do i plant .