Well it's officialy winter here in Australia and the day time temps are sitting around 16-20 degrees. I won't make many updates over the next few monts as nothing much will happen, the plants are pretty much dormant as I type this.
I was thinking about heating the grow room in an attempt to overwinter them but decided against it. I think I will get better results as far as aesthetics and flowering goes if I let them run the natural course.
If anyone reading this has any rare Astrophytum or other cacti seed they woudl like to trade or sell please get in contact with me.