I used to have some, but sadly no survivors. I'm curious too, do you have a picture of your aunt's Gymno?

no i don't unfortunately :( I should have taken some

I have a dark red (not neon) and dark purple ones that are about a tennis ball size, not grafted. I just bought a grafted purple one because it was huge, and was covered in pups and hot pink blooms. I just started an experiment and i'm trying to root some of the pups, while I also am attempting to graft a few more. :)

tennis ball ...that's pretty big for moon cacti!

I've read that the darker purplish ones can live without being grafted since it does has some chlorophyll under its skin. Good luck with the rooting and grafting :)

Going to get one later today :D

You guys make me wants to get one myself, the purple one sounds interesting... :D

For long-term survival of the other colors you will probably have to regraft them at some point, I think, as they get larger, onto a more appropriate and larger stock plant. Maybe a larger size Myrtillocactus(?).

I've seen 3 different sizes of these sold at a local Walmart. I have a couple of the mediums: yellow and pink. I'm tempted to try grafting some of the pups to Pereskiopsis or Austrocylindropuntia. Your aunt must be pinching off the pups when they're small.

I saw these yesterday, definitely bigger than the average mooncactus. The largest one, the red one with few pups somewhat left from the middle, was between 3" and 3 1/2" diameter.

@ woodnative. Yea, it'll probably need to be regrafted at some point. I plan to graft it on to an opuntia or trichocereus since my some of neighbors have those growing and I can ask for a cutting.

@polypompholyx I think so too. the pinching of the pups must have help it retain more nutrients and grow bigger.

@gdinieontarioz5 Thanks for the pic! The larger sized ones are hard to come by here.

That's a nice one, Leslie. So many flowers and pups at the same time.

Don't know if it'll pup form the same areole again. I have a green gymnocalycium mihanovichii but have never remove it's pups.

i removed a few of the pups because they looked like they might push the scion off the stock. And others because I'm just plain greedy and wanted more plants.

I got one as a present for a friend when I lived in Peru! I am trying to find a similar one to buy online but didnt have any luck yet. Unfortunatelly, my friend went travelling for a few months and it died :( But this is how big it was: