Potting technique leading to crown rot

[Bud]

When you water an orchid you want to let the water run through the plant for a minute or so. Don't use cold water as this will shock the plant. Take your orchid to the sink and let tepid water or room temperature water run through the pot to soak the plant thoroughly. Be sure to let the plant drain completely. If water remains in the crown of Phalaenopsis plants (where the leaves join in the center), it can provide a perfect environment for fungus or bacteria to do their dirty work. Use a paper towel to blot the water to avoid crown rot.

*crown rot is your title so I assumed you wanted to address this issue.

the factors of potting at an angle or choice of media mix is of little importance as to following the correct watering method to avoid crown rot.... other members pot upright and they use different kinds of mix....yet they can grow Phals well....

---------- Post added at 06:45 PM ---------- Previous post was at 06:35 PM ----------

the bottom most crown=last two leaves meeting at the very bottom of the plant is what you mean...then it is the 'basal crown' ...if you have more than 10 leaves then there will be more than 5 crowns....
*its just a matter of looking at the RHS illustration of the parts of a Phaleanopsis (it can also be found in a bound book made of paper without batteries)....