It's been awhile since I had orchids and I need a bit of a refresher. I have a cattleya that looks like it is sending out a bloom. Should I increase the watering and or fertilizer. It's sitting in a bay window that is facing the south so it's getting plenty of sun. I have a phal. that has also sent out a bloom stalk. I have been watering them both once a week with 20/20/20/ fertilizer. Should I change this?