Egg Shells on Orchid Phalaenopsis?

[Dendy83]

Well, I've been lurking around the forums a while and have not heard that at all. I think it's generally recommended to use fertilizer, that way you know exactly what's going into the pot and it gives exactly what the orchids need. No second guessing and no chance of something killing it by accident again (like what if coffee grounds are actually bad for it).