Hello June and welcome to the forum. You have some nice looking plants there,but not all Lithops. The red ones are Pleisopilos nellii royal flush and the large green one is a Haworthia. The other 4 in the top left are all Lithops.I would pot them up seperately as each Genus has different watering requirements. Good luck with them ( no more water for the Lithops ).
Lithops,Cacti,Conophytums,Tylecodons,Sempervivums and Sedums