Ill give you some universal pointers about euphorbias
-their roots are terrible. I think you can visually see why, but in general: they need coarse draining soil(NOT like echeverias and sedums and other crassulacae). Emphasis on the coarse. This means small gravel, perlite, pumice, crushed brick, baked clay etc... lots of coarse inorganic material to compose the bulk of the soil. Also, extra care during potting. I neednt mention this, but larger holes on the bottom of the pot(and lots of them if you can)...
- they like it moist in winter. They dont have a rest period(like a lot of cacti and succulents), but they do like it dryer in winter, but not completely bone dry as most cacti. Basically half the watering frequency in summer.
-not to bright, not too dark. Euphorbias sun burn easily.
Prefer very bright, but not direct sun, especially suddenly.
Also, dont water for 2 weeks after potting.
