Melocactus conoideus Mesemb rarely reaching much more than

rarely reaching much more than 1" across

Differences in plant color in the images are due to this

The variegation seems to be best in high light an can nearly disappear in low light

It is a winter grower so give it more moisture in the cooler months and hold back on the water in the summer (I don't water at all during the hottest months)

Melocactus conoideus Mesemb rarely reaching much more thanMelocactus conoideus A nice cephallium forming species. When young (as they are now) they seem like a regular plant but once it gets big enough the main plant stops growing but produces a large hairy inflorescence that continues to grow for the rest of the life of the plant. Eventually the inflorescence can be taller than the plant itself. This is more tropical than most succulents so it doesn't like cold weather and it also doesn't like to fully dry