I use to buy these as a kid, I liked the Aponogeton best, nice lush green leaves..did amazing in low tech.. i think it's A. ulvaceous. The Lilys always had small leaves for me, and occasionally sent up the pads-not as great as the Apons. Might have to try these again... I seem to remember it took about a month for the bulbs to start growing, and usually a few in the pack would be duds. Floating for a little while is not a big deal, but they should sink after a few days.. Inspect the packages for mold before you buy them!