I try can keep temps in the lower 70s, I'm in Pennsylvania.

Hey no problem. That creeping devil is a real character!

I haven't found them to to be to picky, cooler temps and I don't cover the seeds. Seems to be working, but I'm no expert and I'm learning along the way.

Lots of trial and error to get to here. Has been a challenge for sure but it's really rewarding. Started messing around growing from seed about 2 years ago. Started the most of the bagged ones over the last 5 months. All kinds of stuff in there from turbs, to mammillaria, ariocarpus, copiapoa, scler...

First post here, have a question on sowing copiapoa from seed. How soon after they sprout should I begin hardening them off? I'm using the baggie method. Seems like finding info on copiapoa sowing is almost as rare as hens teeth. Thanks.