Additives

Additives

  • Alchemist PH Down 1Qt.

    Alchemist

    $18.95
    Alchemist pH Down is comprised of very pure, food safe ingredients. This unique buffer is non-toxic, non-corrosive and non-hazardous making it like no other pH buffer on the market. Alchemist pH Down Non-Corrosive will not increase the conductivity of...
    $18.95
  • Alchemist PH Up 1 Qt.

    Alchemist

    $13.95
    Alchemist pH Up is comprised of very pure, food safe ingredients. This unique buffer is non-toxic, non-caustic and non-hazardous making it like no other pH buffers on the market. Alchemist pH Up Non-Caustic will not increase the conductivity of your...
    $13.95
  • CES PH Down 1 Quart

    CES

    $10.76
    Concentrated pH adjustment liquid, acidic buffer lowers water and nutrient solution pH. Highly concentrated, use conservatively. Slowly add to pure water or nutrient solution, at small intervals. Note beginning reading and then test pH. Repeat...
    $10.76
  • CES PH UP 1 Qt.

    CES

    $10.76
    Concentrated pH adjustment liquid, alkaline buffer raises water and nutrient solution pH. Highly concentrated, use conservatively. Slowly add to pure water or nutrient solution, at small intervals. Note beginning reading and then test pH. Repeat small...
    $10.76
  • Compost Starter 4 Lb Bag

    $14.95
    Espoma Compost Starter is the ideal choice to help make rich, fertile compost—nature's original soil conditioner. Espoma Organic Compost Starter is formulated to accelerate the process of home composting materials including manure, grass, leaves...
    $14.95
  • Cornucopia Plant Energy 1 Qt

    MSRP: $14.99
    $7.00
    The relationship between acid metabolism, carbon dioxide fixation and ion uptake by roots runs parallel with total photosynthetic assimulation.Cornucopia Plus™ Necessary Plant Energy energizes plant metabolism and maximizes plant production...
    MSRP: $14.99
    $7.00
  • Earth Juice Elements Cal-N-Mag

    Earth Juice

    $9.99
    For use with planting mixes, native soils and as a hydroponic additive. Elements Cal-n-Mag is a calcium and magnesium formula developed for plants to help prevent and treat calcium and magnesium deficiencies. For use as a calcium and magnesium booster or...
    $9.99
  • GH Armor Si, 1 qt

    $15.80
    Armor Si™ is suitable for all types of plants during all stages of growth. It can be used for plants growing in hydroponics, coco coir and all types of media. Use as a growth enhancer with irrigation water or in addition to your regular fertilizers...
    $15.80
  • *Comes without testing bottle

    GH pH Test Indicator Fluid

    GH

    $7.99
    General Hydroponics® pH Test Kits make pH testing easy. Simply fill a test-tube halfway with nutrient, add a few drops of pH Test Indicator and observe the coloration of the liquid in the test vial. Many experienced growers prefer our pH Test Kit to...
    $7.99
  • GH pH Up, 1 gal

    $26.90
    To maximize plant growth, the pH content of your nutrients should be slightly acidic. Experienced growers consider the ideal pH for most crops to fall between 5.5 and 6.5. Users of General Hydroponics nutrient products generally do not experience...
    $26.90
  • GH pH Up, 1 qt

    $10.76
    To maximize plant growth, the pH content of your nutrients should be slightly acidic. Experienced growers consider the ideal pH for most crops to fall between 5.5 and 6.5. Users of General Hydroponics nutrient products generally do not experience...
    $10.76
  • Hygrozome 4 Liter

    $136.95
    Trusted Performance.100% Guaranteed Results.   Provides a cleaner root zone Accelerates breakdown of dead roots Effective in all growing media & growth stages Compatible with all nutrient & supplement programs Supports...
    $136.95
  • SLF-100 Quart

    $35.99
    SLF-100 is a 100% organic and OMRI listed enzymatic formula with over 18 years of proven success, and it's compatible with all nutrients, fertilizers, rooting compounds as well as H202. SLF-100 works to keep your system running by eliminating any gunk or...
    $35.99
  • Technaflora Liquid Humus 250 ml

    MSRP: $14.99
    $6.00
    Liquid Humus is an unsurpassed natural and organic source of concentrated essential nutrients, vitamins, and trace elements. Technical humic acids aid plants to best utilize the vitamin and nutrient benefits of a complete feeding program. These...
    MSRP: $14.99
    $6.00
  • TNB Naturals PH up

    TNB Naturals

    $20.00
    TNB Naturals Up and Down are composed of all natural ingredients with the addition of no harmful chemicals. This innovative way to raise and lower the pH levels of your hydroponic or liquid fertilizer is both simple and cost effective. Simply add a small...
    $20.00
  • Vegetable & Fruit Yield Enhancer 16 oz

    MSRP: $19.99
    $8.00
    With Endo Mycorrhizal Fungi What it is: A highly active and balanced blend of microbes and humic substances that combines photosynthetic cultures and essential elements. Formulated specifically to enhance the yield of vegetables and fruit by aiding the...
    MSRP: $19.99
    $8.00