I purchased this guy about three weeks back but couldn't ID it. What is it called and how do I best care for it?
It is most likely Echeveria, specifically E. coccinea rosea. There are images of this plant lower down in this link http://n-s-succulents.co.uk/Echeverias-a-h.php.
Echeveria need lots of bright light and particularly sunlight, otherwise their typical rosette form becomes elongated, stretched out, so find a sunny spot indoors where it can live. You should allow it to dry out between waterings, and like your other succulent, never leave any water in the outer pot or tray after watering. Further care instructions here https://www.hortmag.com/plants/plants-we-love/echeveria-plant-care-indoors