Mixed cactus seedlings and Astrophytum capricorne

Mixed cactus seedlings, 6 months
Astrophytum capricorne, 1 year + 5 months

The 6 months old unidentified cactus seedlings have outgrown my 1,5 year old Astrophytum seedlings already. One of the Astrophytum seedlings just started to grow its first adult spines (the one in front, right side of the pot).

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