I will NEVER EVER buy hornwort again. I'll admit, the kid @ Petland told me it would shed, so I was warned....but I didn't realize it would shed THAT bad! I got a good 4 or 5 bunches and threw them in my tank. Within a day, BOTH of my filter intakes were completely covered in the plant sheddings. Within a couple weeks, the plant has started to turn brown, even though I put Fluorish in it and keep the lights on as much as I can. Needless to say, it took me awhile to get it out of my tank (much to the chagrin of my shrimp, I'm sure) and net as much of the floating "leaves". NEVER again!!! :mad2: