Urgh. Pro-shrimp agreed to send me another cup of the red root floaters for free with my last order, since the previous two batches I bought melted back to nothing within days. This time, again, I put them in a breeder box away from any other plants and any surface disturbance, the opposite side of the tank from the filter. But despite my being hopeful for a day or two, they've again mostly all melted away to nothing. I officially give up on red root floaters! Sucks, I really wanted a different floating plant in this tank, but can't find anything I'm doing wrong, or a more suitable source with larger plants that's shrimp safe.