We have used this fertilizer for many years with great success. We feed at various ratios and frequencies depending on genera. We have used on Cattelya, Catasetinae, Paphiopedilum, Phragmipedium, Phalaenopsis species, Potted Bulbophyllum, and Dendrobiums. This is a water soluble fertilizer that is easy to dilute and apply to your plants. 

For Bulbpphyllum, Paphiopedilum and Phragmipedium we apply 1/2 teaspoon per gallon every other week. Watering frequency varies on your media and environment. Once per month we flush pots with Rain water or RO water. 

For all other genera, we feed 1tsp per gallon weekly. In winter months, we apply every other week. We will also flush pots periodically to avoid buildup as we use Tap water.