Thank you very much for the support friend @ewkaw the Astrophytum is super grateful !!!! And very easy to take care of the truth, if you sow it from seeds you will be a little complicated by covering the seedbed, you can not enter air !!!

But if you buy them or they are given to you as a gift, just give them plenty of sun ☀️, a sandy substrate and watering with little water is enough.

Same whatever you wish I can help you with cacti, let me know no problem @ewkaw, I always help everyone !!!! 😊🙏🏻🇨🇺👏☺️