Thank you very much for the advice. I wish I could get a picture on here. The bottom looks like a smaller type of column
cactus and the top one is a type of colored ball
cactus. One has dried nicely on top so it won't be a problem removing the top, but at this stage the ball on the other is discoloured and looks very moist. Should I wait until it dries up more before I remove it.
Too, if I cut down below the dried edge looking for left over roots won't the
cactus insides be exposed and rot or wither?
Out of curiousity, does the grafted colored part on top of the original
cactus remain colored indefinitely or does it eventually die off leaving what I have now.
Thanks again.