Dear friends of nature I have a cactus - Gymnocalycium mihanovichii (red). I mentioned that it was ill, it became brown with black spots. It had two children, so I pulled it from the a healthy Hylocereus (green) and grafted it's healthy child on Hylocereus (green). Don't know what to do with another healthy child. Waiting for advice. Sorry for my poor English, greetings from Georgia. Thank you.
So your Gymnocalycium had two offsets, and you have grafted one of them on another grafting stock? There is not much you can do with the second offset except grafting that one too.
I grafted for the first time and I'm a little bit anxious about that. Hope I did everything right. Thank you very much :)