If it is in that bad of shape ask for a discount. I purchased a discounted C. calamistratum from a member on this forum because it was previously covered in algae. He sent it to me with most of the leaves cut off. It is slow to recover but it is recovering. When I first planted it all the roots rotted off (be very gentle with the roots) and I thought I killed it but it has been floating at the surface for a month now and just started to re-grow roots. I am going to try to re-plant it this week.