Maintain the perfect pH balance with the General Hydroponics pH Test Indicator.What's Included: 1 oz (30 ml) pH test indicator solution with test vialEssential for hydroponic systems AND beneficial for soil gardeningThis 1-ounce bottle provides quick, accurate readings with just 4 drops in a test vial, giving a clear view of your water's acidity or alkalinity. Ideal for all gardeners, it ensures optimal conditions for thriving plants.Optimal pH levels are between 5.5 - 6.5 for hydroponics Easy color-matching: Compare solution color to included chart No batteries needed: Simple liquid test - no electronics to fail Accurate readings: Reliable results every time Hundreds of tests: 1 oz bottle lasts for months of regular testing Includes test vial: Everything you need to start testing immediately How to Use: Fill test vial with water sample to the fill line Add 4 drops of pH test indicator Cap and shake gently Compare color to pH chart (yellow = acidic, green = neutral, blue = alkaline) Adjust with pH Up or pH Down as needed Perfect for: Chef's Organic Set, all hydroponic systems, aquariums, pools, and soil gardens.
