Very nice Thijs, quite a good size too, mine is only about fist size! I see they can be prolific bloomers even when young so thats good news! It'll go with my others on a S/E facing window (best I have) although I doubt any cactus from the shop I bought it in has ever experienced natural sun I'll have to be careful! So no cooler period needed for bloom? Very helpful Thijs thankyou.