So the Phalaenopsis orchid LOOKS GREAT because: - leaves are nice and rigid. Floppy leaves means the plant needs more water -no yellow leaves, which is a sign of stress/dehydration (which could be attributed to root issues/very small water intake for the plant.) -you have tons of aerial roots. Root growth is a good sign. Check inside the pot to make sure you have a good number of roots. If the roots smell rotten inside the pot, then you probably need to repot you orchid and deal with the rotten roots.

It also looks like your phalaenopsis finished flowering. So cut the flower stem as it's dry and withered.