Fertilizers

  • Amendments & Growing Media

    Amendments

    Soil Amendments & Growing MediaHealthy soil and growing media are the foundation...

    Amendments

  • BioStimulants

    BioStimulants

    Plant Biostimulants & Growth EnhancersBiostimulants are substances and microorganisms that improve plant...

    BioStimulants

  • Specialty Crop Fertilizers

    Professional-Grade Fertilizers Formulated for Specialty Crops Give your plants the precise nutrition...

    Specialty Crop Fertilizers

  • Foliar Fertilizer Supplies

    Foliar Fertilizer Supplies

    Everything You Need to Run an Effective Foliar ProgramCustom Hydro stocks a...

    Foliar Fertilizer Supplies

  • Liquid Fertilizers

    Liquid Fertilizers

    Blended Liquid Fertilizer ConcentratesLiquid fertilizer concentrates offer convenience and precision for hydroponic,...

    Liquid Fertilizers

  • Organic Fertilizers

    Organic Fertilizers

    Dry Organic & Natural Mineral FertilizersCustom Hydro stocks a full range of...

    Organic Fertilizers

  • Schedule Consultation

    Schedule Consultation

    Schedule a Fertilizer & Hydroponics ConsultationGet expert, one-on-one guidance from Custom Hydro...

    Schedule Consultation

  • Preservatives

    Stock Solution Preservatives

    Preservatives for Fertilizer Solutions & Hydroponic ReservoirsMicrobial contamination in fertilizer stock solutions...

    Stock Solution Preservatives

  • Water Soluble Fertilizers

    Water Soluble Fertilizers

    Maximum Yields with Pure Water Soluble Fertilizers Pure Mineral Fertilizers and Pre-Mixed...

    Water Soluble Fertilizers

Custom Hydro stocks a full selection of water soluble and organic fertilizers and plant bio-stimulants.

Get the perfect fertilizer solution for your growing needs with Custom Hydro! From Canna+ to lettuce to pepper, our wide selection of water soluble and organic fertilizers and plant bio-stimulants will ensure that commercial and hobby growers have just what they need for hydroponics, fertigation and foliar applications.

  • Organic Root Activator 1 gallon Organic Root Activator 1 gallon
    Organic Root Activator 1 gallon
    Grower Price
    Organic Root Activator 1 gallon
    $31.00
    $43.06 $31.00
    Grower Price
  • Lidoquest Manganese EDTA 13% 55 lb.
    Lidoquest Manganese EDTA 13% 55 lb.
    Grower Price
    Lidoquest Manganese EDTA 13% 55 lb.
    $387.36
    $483.48 $387.36
    Grower Price
  • Potassium Carbonate 4lb. Step-by-step infographic showing how to make a pH UP stock concentrate using Arm & Hammer DCAD Plus Potassium Carbonate Sesquihydrate. Steps include: wear safety gear, fill with cold water, add powder slowly, stir until clear, use 20-40g per 4 liters, and store sealed and dry. Fertilizer grade 0-0-57, 57% K2O.
    Potassium Carbonate 0-0-57 | 4 lb
    Potassium Carbonate 0-0-57 | 4 lb
    $23.44
    $23.44
  • Magnesium Nitrate 1 lb.
    Magnesium Nitrate 1 lb.
    Magnesium Nitrate 1 lb.
    $9.00
    $0.00 $9.00
  • KIR silicic acid and chitosan fertilizer Haifa Stim KIR silicic acid and chitosan fertilizer
    KIR Chitosan & Silicic Acid Biostimulant, 1 Liter
    Grower Price
    KIR Chitosan & Silicic Acid Biostimulant, 1 Liter
    $82.80
    $110.40 $82.80
    Grower Price
  • MasterBlend 9-12-34 Strawberry Formula 25 lb. MasterBlend 9-12-34 Strawberry Formula 25 lb.
    MasterBlend 9-12-34 Strawberry Formula 25 lb.
    Grower Price
    MasterBlend 9-12-34 Strawberry Formula 25 lb.
    $42.23
    $50.88 $42.23
    $1.69 lb
    Grower Price
  • Vitazyme plant bio-stimulant 1 gallon Vitazyme plant bio-stimulant 1 gallon
    Vitazyme plant bio-stimulant 1 gallon
    Grower Price
    Vitazyme plant bio-stimulant 1 gallon
    $85.88
    $129.15 $85.88
    Grower Price
  • Potassium Chloride 0-0-62 fertilizer 50 lb.
    Potassium Chloride 0-0-62 fertilizer 50 lb.
    Grower Price
    Potassium Chloride 0-0-62 fertilizer 50 lb.
    $43.68
    $69.50 $43.68
    Grower Price
  • PeKacid 0-60-20 fertilizer 20 lb.
    PeKacid 0-60-20 fertilizer 20 lb.
    PeKacid 0-60-20 fertilizer 20 lb.
    $66.20
    $0.00 $66.20
  • Cobalt Nitrate 10 grams
    Cobalt Nitrate 10 grams
    $12.75
    $0.00 $12.75
  • MagPhos 0-55-18 fertilizer 4 lb.
    MagPhos 0-55-18 fertilizer 4 lb.
    MagPhos 0-55-18 fertilizer 4 lb.
    $22.75
    $0.00 $22.75
  • Calcium Formate 30% Ca nitrogen-free water-soluble fertilizer 4 lb resealable jar Calcium Formate 30% Ca Fertilizer 4 lb
    Calcium Formate 30% Ca Fertilizer 4 lb
    Calcium Formate 30% Ca Fertilizer 4 lb
    $13.02
    $13.02
  • Plant-Prod MJ Bloom 10-30-20, 25 lb. bag Plant-Prod MJ Bloom 10-30-20, 25 lb. bag
    Plant-Prod MJ Bloom 10-30-20, 25 lb. bag
    Plant-Prod MJ Bloom 10-30-20, 25 lb. bag
    $78.94
    $0.00 $78.94
  • Manganese Sulfate fertilizer 8 oz.
    Manganese Sulfate fertilizer 8 oz.
    Manganese Sulfate fertilizer 8 oz.
    $3.50
    $0.00 $3.50
  • Sul-Po-Mag standard mini-granule 50 lb. sul-po-mag standard mini granule
    Sul-Po-Mag K-Mag Langbeinite Fertilizer 50 lb
    Grower Price
    Sul-Po-Mag K-Mag Langbeinite Fertilizer 50 lb
    $41.25
    $62.00 $41.25
    Grower Price
  • Lidoquest Copper EDTA 15% 55 lb.
    Lidoquest Copper EDTA 15% 55 lb.
    Grower Price
    Lidoquest Copper EDTA 15% 55 lb.
    $473.68
    $591.21 $473.68
    Grower Price

Serving Arkansas, Kansas, Missouri and Oklahoma. Shipping Nationwide! Wholesale to the public!