What are the little black specks in the center where all ...

5โ pot with drainage

Last watered 4 days ago

They look to be aphids. Depending on personal preferences, you can treat a couple different ways. I have included links to 2 different sites that give instructions on how to deal with these and other types of common issues. Both with pesticides and more natural ways. https://www.reddit.com/r/succulents/wiki/pests_and_diseases #wiki_aphids
https://garden.org/thread/view/156048/Succulent-Pests-Diseases/
https://garden.org/thread/view/156048/Succulent-Pests-Diseases/