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Additives

  • Heavy 16 Fire - HydroPros.com

    Heavy 16 Fire

    Heavy 16
    from $39.98

    Heavy 16 Fire 1 Liter Heavy Fire represents the ultimate hand crafted P/K booster created through strict adherence to nutritional chemistry and bio...

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    from $39.98
  • Heavy 16 Foliar - HydroPros.com

    Heavy 16 Foliar

    Heavy 16
    from $11.98

    In our quest to provide the highest grade products with superior efficacy to our growers, Heavy 16 Professional Foliar Nutrient (PFN) is hands down...

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    from $11.98
  • Heavy 16 Prime - HydroPros.com

    Heavy 16 Prime

    Heavy 16
    from $66.14

    PRIME is an ultra-diverse liquid formulation designed for use at all times of your crops cycle. We have formulated Prime to be the centerpiece of ...

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    from $66.14
  • Heavy 16 Roots - HydroPros.com

    Heavy 16 Roots

    Heavy 16
    from $39.98

    Heavy Roots is a revolutionary new additive designed to enhance the rhizosphere on all levels. As always, we have packed multiple functions into on...

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    from $39.98
  • House and Garden Drip Clean - HydroPros.com
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    House and Garden Drip Clean

    House and Garden
    from $16.00

    House and Garden Drip Clean acts like a magnet, removing dirt particles at every nutrient feeding so that piping and medium remain clean. This give...

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    from $16.00
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  • House and Garden Multi Zen - HydroPros.com

    House and Garden Multi Zen

    House and Garden
    from $30.66

    House & Garden has formulated Multi Zen specifically to help you achieve maximum potential harvest after harvest. Multi Zen’s unique formulatio...

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    from $30.66
  • House and Garden Roots Excelurator Gold - HydroPros.com

    House and Garden Roots Excelurator Gold

    House and Garden
    from $54.65

    Roots Excelurator is the best and most powerful root stimulator available in today's market, and our top show-piece in the area of ultra-concentrat...

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    from $54.65
  • House and Garden Shooting Powder - HydroPros.com

    House and Garden Shooting Powder

    House and Garden
    from $9.60

    Shooting Powder is House & Garden‰۪s late flowering additive. Shooting Powder helps to induce a second surge of flower production during the la...

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    from $9.60
  • House and Garden Top Booster - HydroPros.com

    House and Garden Top Booster

    House and Garden
    from $22.66

    House and Garden Top Booster is an excellent flowering stimulator which acts on the basis of potassium and phosphorus and Dedham-Fe (iron). These e...

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    from $22.66
  • House and Garden Top Shooter - HydroPros.com

    House and Garden Top Shooter

    House and Garden
    $83.98

    This amazing bud expander is the absolute best in the field of flowering stimulators. It gives visible results and work brilliantly with all base n...

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    $83.98
  • Humboldt County's Own Crystal Burst - HydroPros.com

    Humboldt County's Own Crystal Burst

    Humboldt County's Own
    from $19.36

    Crystal Burst (0-15-15) + B1, one of the most potent liquid PK Boosts on the market. 50% stronger than the most popular brands on the market yet it...

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    from $19.36
  • Humboldt County's Own Deep Breath - HydroPros.com

    Humboldt County's Own Deep Breath

    Humboldt County's Own
    from $43.99

    Are you impressed by the immediate and powerful effect of G10 on the size and density of your flowers? Wait till you add DEEP BREATH to your feedin...

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    from $43.99
  • Humboldt County's Own G10 Gravitation - HydroPros.com
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    Humboldt County's Own G10 Gravitation

    Humboldt County's Own
    from $47.11

    Humboldt County's Own started with their original proprietary kelp extract and took it to the next level with G10 (Gravitation #10). Use from the t...

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    from $47.11
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  • Humboldt County's Own Magnum - HydroPros.com

    Humboldt County's Own Magnum

    Humboldt County's Own
    from $11.04

    Magnum is a concentrated Magnesium supplement with vitamin B1 for supplying extra Magnesium and Sulfur during the Bloom phase.

    from $11.04
  • King Kola Bloom Booster - HydroPros.com

    King Kola Bloom Booster

    Emerald Harvest
    from $34.11

    REIGN SUPREME AND RULE YOUR GARDEN Benefit from every flower in your garden with King Kola, a premium, powerful bloom booster from Emer...

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    from $34.11
  • Kool Bloom 2.2 Pound - HydroPros.com

    Kool Bloom 2.2 Pound

    General Hydroponics
    from $23.81

    • Encourages abundant flowering• Facilitates ripening in annuals• Boosts production of essential oils and fragrances• Increases size and weight of ...

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    from $23.81
  • Mammoth Microbes CannControl - HydroPros.com

    Mammoth Microbes CannControl

    Growcentia
    from $29.97

    The next generation of precision pest control A concentrated spray proved to control mold, miler, mites, and insects, introducing Mammoth Microbes ...

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    from $29.97
  • Mammoth P Microbes - HydroPros.com

    Mammoth P Microbes

    Growcentia
    from $89.77

    Unleash your plant's full growth potential with MAMMOTH P. MAMMOTH P is a university-tested patent-pending microbial bio stimulant that natural...

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    from $89.77
  • Sold out

    Max Microbe Beneficial Active Microbes for Plants

    Max Microbe
    from $37.15

    Max Microbe is a mixture of over 25 microbial strains that have a demonstrated ability to multiply and coexist together in close proximity. Several...

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    from $37.15
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  • Mills Nutrients C4 - HydroPros.com

    Mills Nutrients C4

    Mills Nutrients
    from $63.32

    C4 is a sophisticated blend of macro nutrients, micro nutrients, bio-stimulants, carbohydrates, and trace minerals guaranteed to give the grower he...

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    from $63.32
  • Mills Nutrients Start-R - HydroPros.com

    Mills Nutrients Start-R

    Mills Nutrients
    from $53.32

    START-R is a complex bio-stimulant nutrient additive for use during the seedling, growth and early bloom phases of all plants. START-R contains a h...

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    from $53.32
  • Mills Nutrients Vitalize - HydroPros.com

    Mills Nutrients Vitalize

    Mills Nutrients
    from $79.98

    The NEWEST product from the innovators at Mills Nutrients! Vitalize will increase your plant vigor, increase the number of node sites and strengthe...

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    from $79.98
  • Aphrodite's Extraction - HydroPros.com

    Nectar for the Gods Aphrodite's Extraction

    Nectar for the Gods
    from $16.12

    Aphrodite's Extraction provides a rich blend of sucrose, glucose, and phosphate to promote a thriving microbial population and strong, health...

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    from $16.12
  • Athena's Aminas - HydroPros.com

    Nectar for the Gods Athena's Aminas

    Nectar for the Gods
    from $10.78

    Every plant needs certain compounds for growth beyond soil, light, water, and CO2. Athena's Aminas provides a readily available amino acid s...

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    from $10.78
  • Bloom Khaos - HydroPros.com

    Nectar for the Gods Bloom Khaos

    Nectar for the Gods
    from $21.99

    Bloom Khaos is Nectar for the Gods' patent pending secret weapon for flower production and alleviating hidden hunger. When using Bloom Khaos ...

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    from $21.99
  • Demeter's Destiny - HydroPros.com

    Nectar for the Gods Demeter's Destiny

    Nectar for the Gods
    from $14.10

    Many production problems originate with too much nitrogen and potassium and not enough available calcium and phosphate. Calcium is the "queen...

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    from $14.10
  • Gaia Mania - HydroPros.com

    Nectar for the Gods Gaia Mania

    Nectar for the Gods
    from $11.98

    Gaia Mania is one of Oregon's Only Organics' original products, and was designed to work as a standalone nutrient for home gardeners. This pr...

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    from $11.98
  • Hades Down - HydroPros.com

    Nectar for the Gods Hades Down

    Nectar for the Gods
    from $14.00

    Hades Down is a pH adjusting liquid used to lower the pH of your nutrient solution. Hades Down chelates elements in the nutrient solution into stab...

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    from $14.00
  • Herculean Harvest - HydroPros.com
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    Nectar for the Gods Herculean Harvest

    Nectar for the Gods
    from $8.73

    Hercules was known for his strength and power: a perfect name for a product that gives your plants just that. Herculean Harvest increases the...

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    from $8.73
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  • Hygeia's Hydration - HydroPros.com

    Nectar for the Gods Hygeia's Hydration

    Nectar for the Gods
    from $10.65

    Hygeia's Hydration is Oregon's Only blending tool for the Nectar for the Gods line of nutrients. Rich in saponins, Yucca acts as a wetting ag...

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    from $10.65
  • Medusa's Magic - HydroPros.com
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    Nectar for the Gods Medusa's Magic

    Nectar for the Gods
    from $10.66

    Medusa's Magic was originally designed as "Part A" of a three-part nutrient line. To brew Medusa's Magic, proteins and enzymes are gently ext...

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    from $10.66
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  • Mega Morpheus - HydroPros.com

    Nectar for the Gods Mega Morpheus

    Nectar for the Gods
    from $10.66

    Mega Morpheus is a fully digested source of readily available natural phosphate, and the only guano tea on the market today that is free of g...

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    from $10.66
  • Olympus Up pH Up - HydroPros.com

    Nectar for the Gods Olympus Up pH Up

    Nectar for the Gods
    from $10.66

    Olympus Up is the Nectar for the Gods pH up product. Most gardeners know to adjust the pH of their nutrient solution before use. By using liq...

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    from $10.66
  • Poseidonzime - HydroPros.com

    Nectar for the Gods Poseidonzime

    Nectar for the Gods
    from $14.65

    Poseidonzime is a liquefied seaweed product rich in organic acids and over 60 naturally occurring major and minor nutrients and amino acids. Kelp i...

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    from $14.65
  • The Kraken - HydroPros.com

    Nectar for the Gods The Kraken

    Nectar for the Gods
    from $10.65

    A digested crab and shrimp shell product, providing an available form of chitin that strengthens plant stem and flower sites. An added egg w...

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    from $10.65