abrasivesounds

Thanks for the quick response.

I separated the pup because I was concerned that it was taking nutrients from the mother / two smaller ones. I also assumed it was big enough to survive, but I guess not.

At this point, I think root rot might have occurred, so I am trying to figure out what to do next. I moved it out of the soil (though it wasn't very wet) and I have a new bag of cactus soil ready. Not sure if that's what I should be doing though.