is my cactus ok? that side looks kinda bad
Moon cacti (grafts of a colourful, chlorophyll-lacking cultivar of Gymnocalycium mihanovichii onto a Hylocereus stem) rarely last very long, I’m afraid. It’s not worth attempting to re-graft the top part at this point, so that’s a goner, but the stem will branch and grow into a large trailing plant. Hylocereus is of interest because it’s where dragon fruit comes from, but getting it to flower indoors can be tricky, as it prefers humid conditions. But they are fast-growing, so useful if you want a lot of trailing foliage. If you want to keep the stem growing, cut below the graft with a clean, sharp knife, and allow it to callous over. I also recommend repotting into a better-draining soil mix. Hylocereus likes a little more moisture and nutrients than desert cactus species, but still needs very good drainage, so incorporate plenty of grit. pumice or perlite into the mix. Best of luck!
