I tried to join GPU mining sphere created by Butch but there on spreadsheet is not a tick and i still have 0.5 Activity. Is an inactive sphere? Can i join new Sphere or i need to wait some tome until join another sphere?
As indicated on the spreadsheet, only spheres with the tick = approved.
You can however join as many spheres as possible.
Participation in the sphere is more critical than just joining the sphere.
Cheers.
Edit: I just checked the spreadsheet, and GPU mining sphere created by Butch has a tick. Hence it is approved.