Echinocactus plantyacanthus

Euphorbia ferox

Huernia.

Care advice later

Allright, now care advice:

-for the echinocactus . Care is similar to golden barrel, get coarse mineral soil(lots of perlite or coarse sand, losts of chunky stuff(gravel, pumice), gradually place in full sun, water weekly in summer, biweekly in winter

- for the euphorbia. Similar soil makeup, similar watering care. Beware when handling, plant has toxic milky latex sap. Same light requirements.

- for the huernia. May like full sun to half shade. Probably less water than the 2 above. Maybe a bit sandier soil(smaller particles)... Plant is toxic, has carrion flowers...