Hard to tell for me. Were they just repotted?

No, well just the one on the left with the black pot, the bigger one, but she adapted really quickly wasn't expecting that. I repotted that one for many reasons one of them was that the pot it came was very fragile plastic and it overgrowth the radius of the pot. I was asking the type of species since that one in particularly I placed on the full sun and got burnt then I searched for moranensis and learnt the plant liked shadier conditions but I'm not sure about that. Those two plants are under my lights both doing good but I don't know how much varies the caring for them?.

Thanks for your reply.

Care for them the same. Bright light. Keep moist and let dry a bit between watering. Google 'Mexican pings'