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

  • Cannabis Fertilizers

    Cannabis Fertilizers

    Professional-Grade Fertilizers Formulated for Cannabis Give your cannabis plants the precise nutrition...

    Cannabis 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.

  • YaraLiva CalciNit 15.5-0-0 | 50 lb YaraLiva CalciNit 15.5-0-0 | 50 lb
    YaraLiva CalciNit 15.5-0-0 | 50 lb
    Grower Price
    YaraLiva CalciNit 15.5-0-0 | 50 lb
    $37.25
    $56.02 $37.25
    $0.75 lb
    Grower Price
  • Magriculture Magnesium Sulfate 50 lb. bag. Magriculture Magnesium Sulfate Heptahydrate 50 lb
    Magriculture Magnesium Sulfate Heptahydrate 50 lb
    Grower Price
    Magriculture Magnesium Sulfate Heptahydrate 50 lb
    $26.30
    $41.64 $26.30
    $0.53 lb
    Grower Price
  • MasterBlend 4-18-38 Tomato Formula 25 lb. A closeup view of a small pile of MasterBlend 4-18-38 hydroponic tomato fertilizer powder.
    MasterBlend 4-18-38 Tomato Formula 25 lb.
    Grower Price
    MasterBlend 4-18-38 Tomato Formula 25 lb.
    $48.00
    $72.18 $48.00
    $1.92 lb
    Grower Price
  • ICL PeaK MKP 0-52-34 fertilizer 50 lb. BAG ICL PeaK MKP 0-52-34 fertilizer 50 lb. BAG BACKSIDE
    ICL PeaK MKP 0-52-34 Fertilizer 50 lb
    Sold out
    ICL PeaK MKP 0-52-34 Fertilizer 50 lb
    $75.67
    $110.00 $75.67
    $1.51 lb
    Sold out
  • MasterBlend 0-12-24 Cannabis Bloom Formula 25 lb. A closeup view of MasterBlend 0-20-42 Cannabis Bloom, a free flowing non-clumping powder fertilizer.
    MasterBlend 0-20-42 Cannabis Bloom Formula 25 lb.
    Grower Price
    MasterBlend 0-20-42 Cannabis Bloom Formula 25 lb.
    $46.59
    $84.25 $46.59
    $1.86 lb
    Grower Price
  • Peters Professional 5-11-26 Hydroponic Special fertilizer 25 lb. European bag. An example of the Peters Professional Hydroponic Special 5-11-26 soluble fertilizer powder.
    Peters Professional 5-11-26 Hydroponic Special Fertilizer - 25...
    Grower Price
    Peters Professional 5-11-26 Hydroponic Special Fertilizer - 25...
    $56.07
    $84.32 $56.07
    $2.24 lb
    Grower Price
  • MasterBlend 8-15-36 Lettuce Formula 25 lb.
    MasterBlend 8-15-36 Lettuce Formula 25 lb.
    Grower Price
    MasterBlend 8-15-36 Lettuce Formula 25 lb.
    $63.54
    $79.30 $63.54
    $2.54 lb
    Grower Price
  • AgSil 16H Potassium Silicate fertilizer 50 lb. AgSil 16h soluble potassium silicate
    AgSil 16H Potassium Silicate 50 lb
    Sold out
    AgSil 16H Potassium Silicate 50 lb
    $337.16
    $507.00 $337.16
    $6.74 lb
    Sold out
  • ICL PeaK MKP 4 lb. MKP Mono-Potassium Phosphate 4 lb
    MKP Mono-Potassium Phosphate 4 lb
    Grower Price
    MKP Mono-Potassium Phosphate 4 lb
    $18.66
    $37.00 $18.66
    $4.67 lb
    Grower Price
  • PureCal 13-0-0 ammonia free calcium nitrate 55 lb. PureCal 13-0-0 Calcium Nitrate | 55 lb Bag
    PureCal 13-0-0 Calcium Nitrate | 55 lb Bag
    Sold out
    PureCal 13-0-0 Calcium Nitrate | 55 lb Bag
    $40.77
    $66.00 $40.77
    $0.74 lb
    Sold out
  • AgSil 16h 4 lb. Potassium silicate fertilizer AgSil 16H Potassium Silicate | 4 lb Re-Closable Container
    AgSil 16H Potassium Silicate | 4 lb Re-Closable...
    Sold out
    AgSil 16H Potassium Silicate | 4 lb Re-Closable...
    $45.34
    $51.00 $45.34
    $11.34 lb
    Sold out
  • Haifa MKP 0-52-34 Fertilizer 50 lb. Haifa MKP 0-52-34 Fertilizer 55 lb
    Haifa MKP 0-52-34 Fertilizer 55 lb
    Grower Price
    Haifa MKP 0-52-34 Fertilizer 55 lb
    $74.73
    $99.00 $74.73
    $1.36 lb
    Grower Price
  • Haifa SOP GG 0-0-51 55 lb. Haifa SOP GG 0-0-51 55 lb.
    Haifa SOP GG 0-0-51 55 lb.
    Grower Price
    Haifa SOP GG 0-0-51 55 lb.
    $41.75
    $60.00 $41.75
    $0.76 lb
    Grower Price
  • JR Croptech Flower Mix 0-21-26 Water Soluble Fertilizer - 25 Pound BAG A closeup view of JR Croptech Flower powder fertilizer mix.
    JR Croptech Flower Mix 0-21-26 Water Soluble Fertilizer...
    Grower Price
    JR Croptech Flower Mix 0-21-26 Water Soluble Fertilizer...
    $93.10
    $135.00 $93.10
    $3.72 lb
    Grower Price
  • Chelated Micronutrient Mix 1 lb.
    Chelated Micronutrient Mix 1 lb.
    Chelated Micronutrient Mix 1 lb.
    $20.42
    $0.00 $20.42
    $20.42 lb
  • Ferti-Fulvic Plus 90% Fulvic Acid - 4 lb Ferti-Fulvic Plus 90% Fulvic Acid - 4 lb
    Ferti-Fulvic Plus 90% Fulvic Acid - 4 lb
    Ferti-Fulvic Plus 90% Fulvic Acid - 4 lb
    $32.10
    $0.00 $32.10
    $8.03 lb

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