Dyna-Gro’s Liquid Orchid Pro 7-8-6 concentrate provides the right balance of nutrients for healthy growth and flowering. It is a professional formulation containing all 6 essential macronutrients and all 10 essential micronutrients for all types of orchids, especially those grown in orchid bark. It is excellent as a rapid cure for nutrient deficiencies. Specifications 8 fl. oz. Net Wt. 11 ounces. Balance: 7-8-6 Application Rates Orchid Pro 7-8-6 is available in 8 oz. liquid concentrate. This fertilizer should be used at a 1/2 tsp. per gallon of water every time you water.