Phalaenopsis orchid

[sarah.t]

My phalaenopsis orchid flowered a couple of weeks ago and is looking very good, except for the fact that the leaves are now starting to turn a worrying shade of yellow. I haven't changed the plant's position or watering habits since I got it last september, so does anyone know what might be causing this?

[Robinia]

Are you feeding it? I'm just getting in to orchids, so I'm no expert, but I give a dilute feed (about half strenth) every time I water & have managed to keep one healthy& flowering for a year!