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Cutting Edge Solutions pH Up SP – 25 Pounds
Original price was: $200.00.$114.50Current price is: $114.50.
General Hydroponics pH Test Indicator Liquid – 8 Ounce
Original price was: $14.53.$9.14Current price is: $9.14.
Hydroponic Research PHLO PH Down+ – 1 Liter
Original price was: $22.00.$13.38Current price is: $13.38.
FoxFarm Cultivation Nation pH Up – 1 Quart
Original price was: $22.41.$12.28Current price is: $12.28.
Foxfarm Cultivation Nation pH Down – 1 Quart
Original price was: $22.41.$14.59Current price is: $14.59.
About pH Up & pH Down
Keeping pH levels correct is one of the most important aspects of indoor gardening. Unlike gardening outdoors, where rainwater and soil provide ample buffers and corrects to input pH, indoor gardens must correct for pH variations in both source water and nutrient feeds. Tap water can vary in its pH because different cities and municipalities add different chemicals and buffers to keep pH above 7. Nutrients usually have very acidic or alkaline values thanks to the mineral salts or concentrated organic supplements. Different species of plants vary in their pH requirements, but a common rule of thumb for indoor growers is 5.5-6.5 for soil, and 5.8-6.3 for hydroponics. HTG Supply carries top brands like General Hydroponics, Earth Juice, Advanced Nutrients, and Nectar for the God, all with excellent pH Ups and Downs.