| Sorry to hear about your Cyms. You did say "I went to water them last night." Do you normally water at night? This can cause rot when the air cools. It is best to water them in the morning or at least early enough that they can air dry before sunset. Not sure if that is what is wrong, just something I noticed in your post.
As for the black, I think you would want to remove any area with the rot. I would wait to see what a couple of other members think since I don't have much experience with Cyms. |