Beautiful! How large is the tub you are growing in? Maybe I should try one of these!
Mark, the tub is about 4 ft x 4 ft x 4 ft... I'm growing it with some waterlilies, though... The lotus itself doesn't need deep water... it just needs a lot of mud..
Do you eat the lotus when it's done?
Nearly all parts of the lotus plant is edibl

The leaves are used to wrap rice, which is then steamed. Uaually, one eats the lotus root (actually the rhizome).. Mine has rhizomes only about 1 inch in diameter, so I guess it's not worth eating...

I think the leaf-stalks ca also be eaten, but you must skin the outer layer first. It is covered with many short spines... Even the seeds are edible. After removing the outer black shell, the inner white 'nut' is cooked with syrup..