Liquid Nutrients & Additives

1191 products

  • Advanced Nutrients Big Bud Coco 10L

    Advanced Nutrients Advanced Nutrients Big Bud Coco - 10L

    In stock

    Big Bud Coco is Advanced Nutrients' Big Bud bloom supplement formulated for coco coir. Along with a phosphorus and potassium boost for mid-bloom, it adds magnesium, two forms of calcium and chelated iron to cover the shortfalls that are common in coco. Mid-bloom phosphorus and potassium supplement made for coco coir NPK: 0-4-4 Adds magnesium, two forms of calcium and chelated iron Feed chart: 2 mL/L in bloom weeks 2–5 Works with pH Perfect and non-pH Perfect base nutrients For coco coir and continuous liquid-feed systems: drip, NFT, flood and drain, aeroponics and deep water culture Size: 10 L (about 2.6 gal)

    In stock

    $281.54

  • Humboldt County's Own Deep Breath 5 gallon

    Humboldt County's Own Humboldt County's Own Deep Breath - 5 GAL

    In stock

    Deep Breath is Humboldt County's Own honey-based veg and early-bloom enhancer. It's used from cuttings through the first week of bloom to prime plants while they build size before flowering. Analysis: 0.1-0-1 (N-P-K) Honey-based cocktail for the vegetative stage and early bloom Size: 5 gallons (18.9 L) Cuttings and clones: 1 tsp per gallon; foliar feeding every 2 days works faster Once clones are 3–4 inches tall and rooted: 1–2 tsp per gallon of nutrient solution, continued through the first week of bloom Foliar: 1 tsp per gallon every 2 days, without nutrients

    In stock

    $456.00

  • Humboldt County's Own Deep Breath 2.5 gallon

    Humboldt County's Own Humboldt County's Own Deep Breath - 2.5 GAL

    In stock

    Deep Breath is Humboldt County's Own honey-based veg and early-bloom enhancer. It's used from cuttings through the first week of bloom to prime plants while they build size before flowering. Analysis: 0.1-0-1 (N-P-K) Honey-based cocktail for the vegetative stage and early bloom Size: 2.5 gallons (9.45 L) Cuttings and clones: 1 tsp per gallon; foliar feeding every 2 days works faster Once clones are 3–4 inches tall and rooted: 1–2 tsp per gallon of nutrient solution, continued through the first week of bloom Foliar: 1 tsp per gallon every 2 days, without nutrients

    In stock

    $256.80

  • Humboldt County's Own Deep Breath 1 gallon

    Humboldt County's Own Humboldt County's Own Deep Breath - 1 GAL

    In stock

    Deep Breath is Humboldt County's Own honey-based veg and early-bloom enhancer. It's used from cuttings through the first week of bloom to prime plants while they build size before flowering. Analysis: 0.1-0-1 (N-P-K) Honey-based cocktail for the vegetative stage and early bloom Size: 1 gallon (3.78 L) Cuttings and clones: 1 tsp per gallon; foliar feeding every 2 days works faster Once clones are 3–4 inches tall and rooted: 1–2 tsp per gallon of nutrient solution, continued through the first week of bloom Foliar: 1 tsp per gallon every 2 days, without nutrients

    In stock

    $114.40

  • Humboldt County's Own Deep Breath 1 quart bottle

    Humboldt County's Own Humboldt County's Own Deep Breath - 1 QT

    In stock

    Deep Breath is Humboldt County's Own honey-based veg and early-bloom enhancer. It's used from cuttings through the first week of bloom to prime plants while they build size before flowering. Analysis: 0.1-0-1 (N-P-K) Honey-based cocktail for the vegetative stage and early bloom Size: 1 quart (946 ml) Cuttings and clones: 1 tsp per gallon; foliar feeding every 2 days works faster Once clones are 3–4 inches tall and rooted: 1–2 tsp per gallon of nutrient solution, continued through the first week of bloom Foliar: 1 tsp per gallon every 2 days, without nutrients

    In stock

    $53.99

  • Humboldt County's Own Deep Breath 8 oz bottle

    Humboldt County's Own Humboldt County's Own Deep Breath - 8 OZ

    In stock

    Deep Breath is Humboldt County's Own honey-based veg and early-bloom enhancer. It's used from cuttings through the first week of bloom to prime plants while they build size before flowering. Analysis: 0.1-0-1 (N-P-K) Honey-based cocktail for the vegetative stage and early bloom Size: 8 fl oz (236 ml) Cuttings and clones: 1 tsp per gallon; foliar feeding every 2 days works faster Once clones are 3–4 inches tall and rooted: 1–2 tsp per gallon of nutrient solution, continued through the first week of bloom Foliar: 1 tsp per gallon every 2 days, without nutrients

    In stock

    $17.99

  • Humboldt County's Own G10 Gravitation #10 5 gallon

    Humboldt County's Own Humboldt County's Own G10 Gravitation #10 - 5 GAL

    In stock

    G10 (Gravitation #10) is Humboldt County's Own flowering additive. It goes in with every watering from the third week of flower through harvest, alongside the rest of your nutrients. HCO lists it at 0-0-0.6 and states it contains no PGRs. Analysis: 0-0-0.6 (N-P-K); no PGRs (plant growth regulators) Size: 5 gallons (18.9 L) Soil: 1 tsp (5 ml) per gallon of water with every watering, alongside your other nutrients; can be increased to 3 tsp per gallon Hydro: ½–1 tsp (2.5–5 ml) per gallon; after 5 days, add another ½–1 tsp per gallon of nutrient solution Timing: start in the 3rd week of flowering and continue through harvest For soil and hydro

    In stock

    $611.20

  • Advanced Nutrients Revive 23L

    Advanced Nutrients Advanced Nutrients Revive - 23L

    In stock

    Revive is Advanced Nutrients' corrective supplement for plants that need help bouncing back, whether from transplant shock, nutrient lockout or deficiency signs like discolored leaves, weak stems or slow growth. It supplies nitrogen along with calcium, magnesium and chelated iron. Nitrogen from urea (released gradually), plus calcium, magnesium and chelated iron NPK: 1-0-0 To correct deficiencies: 5 mL/L in the nutrient solution or 3 mL/L as a foliar spray; repeat after a week if needed As part of a regular feeding program: 1 mL/L Usable in vegetative growth and flowering; works with pH Perfect and non-pH Perfect base nutrients For hydroponic media including coco coir, and continuous liquid-feed systems: drip, NFT, flood and drain, aeroponics and deep water culture Size: 23 L (about 6 gal)

    In stock

    $420.32

  • Advanced Nutrients Revive 10L

    Advanced Nutrients Advanced Nutrients Revive - 10L

    In stock

    Revive is Advanced Nutrients' corrective supplement for plants that need help bouncing back, whether from transplant shock, nutrient lockout or deficiency signs like discolored leaves, weak stems or slow growth. It supplies nitrogen along with calcium, magnesium and chelated iron. Nitrogen from urea (released gradually), plus calcium, magnesium and chelated iron NPK: 1-0-0 To correct deficiencies: 5 mL/L in the nutrient solution or 3 mL/L as a foliar spray; repeat after a week if needed As part of a regular feeding program: 1 mL/L Usable in vegetative growth and flowering; works with pH Perfect and non-pH Perfect base nutrients For hydroponic media including coco coir, and continuous liquid-feed systems: drip, NFT, flood and drain, aeroponics and deep water culture Size: 10 L (about 2.6 gal)

    In stock

    $213.18

  • Humboldt County's Own G10 Gravitation #10 2.5 gallon

    Humboldt County's Own Humboldt County's Own G10 Gravitation #10 - 2.5 GAL

    In stock

    G10 (Gravitation #10) is Humboldt County's Own flowering additive. It goes in with every watering from the third week of flower through harvest, alongside the rest of your nutrients. HCO lists it at 0-0-0.6 and states it contains no PGRs. Analysis: 0-0-0.6 (N-P-K); no PGRs (plant growth regulators) Size: 2.5 gallons (9.45 L) Soil: 1 tsp (5 ml) per gallon of water with every watering, alongside your other nutrients; can be increased to 3 tsp per gallon Hydro: ½–1 tsp (2.5–5 ml) per gallon; after 5 days, add another ½–1 tsp per gallon of nutrient solution Timing: start in the 3rd week of flowering and continue through harvest For soil and hydro

    In stock

    $344.00

  • Humboldt County's Own G10 Gravitation #10 8 oz bottle

    Humboldt County's Own Humboldt County's Own G10 Gravitation #10 - 8 OZ

    In stock

    G10 (Gravitation #10) is Humboldt County's Own flowering additive. It goes in with every watering from the third week of flower through harvest, alongside the rest of your nutrients. HCO lists it at 0-0-0.6 and states it contains no PGRs. Analysis: 0-0-0.6 (N-P-K); no PGRs (plant growth regulators) Size: 8 fl oz (236 ml) Soil: 1 tsp (5 ml) per gallon of water with every watering, alongside your other nutrients; can be increased to 3 tsp per gallon Hydro: ½–1 tsp (2.5–5 ml) per gallon; after 5 days, add another ½–1 tsp per gallon of nutrient solution Timing: start in the 3rd week of flowering and continue through harvest For soil and hydro

    In stock

    $22.99

  • Humboldt County's Own Killer Tea 5 gallon

    Humboldt County's Own Humboldt County's Own Killer Tea - 5 GAL

    In stock

    Killer Tea is a ready-to-use tea from Humboldt County's Own, made from seabird and bat guano plus pure worm castings (not worm compost). It's triple filtered to keep sediment down, so there's no brewing or aerating, and it won't clog emitters. Made from seabird and bat guano and pure worm castings Ready to use: no tea brewing, long shelf life, triple filtered so it won't clog emitters Size: 5 gallons (18.9 L) Soil: 1 oz (30 ml) per gallon of water from early veg all the way to the end of bloom Clones: 1 oz per gallon

    In stock

    $126.40

  • Humboldt County's Own Killer Tea 2.5 gallon

    Humboldt County's Own Humboldt County's Own Killer Tea - 2.5 GAL

    In stock

    Killer Tea is a ready-to-use tea from Humboldt County's Own, made from seabird and bat guano plus pure worm castings (not worm compost). It's triple filtered to keep sediment down, so there's no brewing or aerating, and it won't clog emitters. Made from seabird and bat guano and pure worm castings Ready to use: no tea brewing, long shelf life, triple filtered so it won't clog emitters Size: 2.5 gallons (9.45 L) Soil: 1 oz (30 ml) per gallon of water from early veg all the way to the end of bloom Clones: 1 oz per gallon

    In stock

    $69.60

  • Humboldt County's Own Killer Tea 1 quart bottle

    Humboldt County's Own Humboldt County's Own Killer Tea - 1 QT

    In stock

    Killer Tea is a ready-to-use tea from Humboldt County's Own, made from seabird and bat guano plus pure worm castings (not worm compost). It's triple filtered to keep sediment down, so there's no brewing or aerating, and it won't clog emitters. Made from seabird and bat guano and pure worm castings Ready to use: no tea brewing, long shelf life, triple filtered so it won't clog emitters Size: 1 quart (946 ml) Soil: 1 oz (30 ml) per gallon of water from early veg all the way to the end of bloom Clones: 1 oz per gallon

    In stock

    $15.59

  • Advanced Nutrients Overdrive 23L

    Advanced Nutrients Advanced Nutrients Overdrive - 23L

    In stock

    Overdrive is Advanced Nutrients' late-bloom supplement for the last two weeks of flowering, before the flush. It supplies phosphorus, potassium and magnesium as plants finish ripening. Late-bloom supplement with phosphorus and magnesium NPK: 1-5-4 Feed chart: 2 mL/L in bloom weeks 6 and 7, then flush (Advanced Nutrients pairs it with Flawless Finish) Works with pH Perfect and non-pH Perfect base nutrients For hydroponic media including coco coir, and continuous liquid-feed systems: drip, NFT, flood and drain, aeroponics and deep water culture Size: 23 L (about 6 gal)

    In stock

    $454.95

  • Advanced Nutrients Overdrive 10L

    Advanced Nutrients Advanced Nutrients Overdrive - 10L

    In stock

    Overdrive is Advanced Nutrients' late-bloom supplement for the last two weeks of flowering, before the flush. It supplies phosphorus, potassium and magnesium as plants finish ripening. Late-bloom supplement with phosphorus and magnesium NPK: 1-5-4 Feed chart: 2 mL/L in bloom weeks 6 and 7, then flush (Advanced Nutrients pairs it with Flawless Finish) Works with pH Perfect and non-pH Perfect base nutrients For hydroponic media including coco coir, and continuous liquid-feed systems: drip, NFT, flood and drain, aeroponics and deep water culture Size: 10 L (about 2.6 gal)

    In stock

    $243.95

  • Humboldt County's Own Crystal Burst 5 gallon

    Humboldt County's Own Humboldt County's Own Crystal Burst - 5 GAL

    In stock

    Crystal Burst is Humboldt County's Own liquid bloom booster, a 0-15-15 phosphorus and potassium concentrate that goes in once flowers start to form. HCO says it's compatible with all nutrient brands. Analysis: 0-15-15 (N-P-K) Size: 5 gallons (18.9 L) Rate: 1 tsp (5 ml) per gallon of water, in soil or hydro Timing: start when you first see flowers forming, around the second week of bloom, and continue until a week before harvest Use Crystal Burst or Sonic Bloom, not both Works with all nutrient brands

    In stock

    $247.20

  • Advanced Nutrients Tasty Terpenes

    Advanced Nutrients Advanced Nutrients Tasty Terpenes - 23L

    In stock

    Tasty Terpenes, formerly sold as Nirvana, is Advanced Nutrients' plant-based supplement made with kelp extract and alfalfa. Kelp and alfalfa supply amino acids and vitamins, along with a small amount of potassium. Kelp extract and alfalfa formula, the same formulation previously sold as Nirvana NPK: 0-0-1 Feed chart: 2 mL/L in grow weeks 1–4 and bloom weeks 3–7 Works with pH Perfect and non-pH Perfect base nutrients For hydroponic media including coco coir, and continuous liquid-feed systems: drip, NFT, flood and drain, aeroponics and deep water culture Size: 23 L (about 6 gal)

    In stock

    $457.96

  • Advanced Nutrients Tasty Terpenes

    Advanced Nutrients Advanced Nutrients Tasty Terpenes - 10L

    In stock

    Tasty Terpenes, formerly sold as Nirvana, is Advanced Nutrients' plant-based supplement made with kelp extract and alfalfa. Kelp and alfalfa supply amino acids and vitamins, along with a small amount of potassium. Kelp extract and alfalfa formula, the same formulation previously sold as Nirvana NPK: 0-0-1 Feed chart: 2 mL/L in grow weeks 1–4 and bloom weeks 3–7 Works with pH Perfect and non-pH Perfect base nutrients For hydroponic media including coco coir, and continuous liquid-feed systems: drip, NFT, flood and drain, aeroponics and deep water culture Size: 10 L (about 2.6 gal)

    In stock

    $232.32

  • Advanced Nutrients Flawless Finish 10L

    Advanced Nutrients Advanced Nutrients Flawless Finish - 10L

    In stock

    Flawless Finish is Advanced Nutrients' pre-harvest flushing agent. Used in place of plain water during the final flush (typically after week 7 of bloom), its chelates help pull excess nutrient salts out of the growing medium. Flushing agent with stabilized chelates and magnesium sulfate NPK: 0-0-0 Feed chart: 2 mL/L at every watering through the flush period In soil and containers, Advanced Nutrients suggests watering to about 20% runoff during the flush Use after pH Perfect or non-pH Perfect base nutrient programs For hydroponic media including coco coir, soil, and continuous liquid-feed systems: drip, NFT, flood and drain, aeroponics and deep water culture Size: 10 L (about 2.6 gal)

    In stock

    $115.47

  • Advanced Nutrients CarboLoad Liquid 10L

    Advanced Nutrients Advanced Nutrients CarboLoad Liquid - 10L

    In stock

    CarboLoad Liquid is Advanced Nutrients' carbohydrate supplement, made with simple and complex carbohydrates that feed the beneficial microbes in the root zone. It can be used through the whole crop, from the first week of growth to the end of bloom. Simple carbohydrates including glucose and xylose, plus complex carbohydrates derived from a proprietary gum extract NPK: 0-0-0 Feed chart: 2 mL/L in grow weeks 1–4 and bloom weeks 1–7; none during the flush A food source for the microbes in Advanced Nutrients' Piranha and Tarantula Works with pH Perfect and non-pH Perfect base nutrients For hydroponic media including coco coir, and continuous liquid-feed systems: drip, NFT, flood and drain, aeroponics and deep water culture Size: 10 L (about 2.6 gal)

    In stock

    $126.89

  • Humboldt County's Own Crystal Burst 2.5 gallon

    Humboldt County's Own Humboldt County's Own Crystal Burst - 2.5 GAL

    In stock

    Crystal Burst is Humboldt County's Own liquid bloom booster, a 0-15-15 phosphorus and potassium concentrate that goes in once flowers start to form. HCO says it's compatible with all nutrient brands. Analysis: 0-15-15 (N-P-K) Size: 2.5 gallons (9.45 L) Rate: 1 tsp (5 ml) per gallon of water, in soil or hydro Timing: start when you first see flowers forming, around the second week of bloom, and continue until a week before harvest Use Crystal Burst or Sonic Bloom, not both Works with all nutrient brands

    In stock

    $137.60

  • Humboldt County's Own Snow Storm Ultra 5 gallon

    Humboldt County's Own Humboldt County's Own Snow Storm Ultra - 5 GAL

    In stock

    Snow Storm Ultra is Humboldt County's Own additive for the snowy, frosted look growers want on finished flowers. It starts in early veg and runs straight through bloom, and HCO says it works with all nutrient lines. Size: 5 gallons (18.9 L) Soil: 1 tsp per gallon of water beginning in early veg; some growers go up to 2–3 tsp per gallon at peak bloom Hydro: ½–1 tsp per gallon starting in early veg and run continuously; can be raised to 2–3 tsp Foliar (if it's not in your reservoir): 1 tsp per gallon 3–4 times a week in veg and early bloom; 1–2 tsp per gallon 3–4 times a week in bloom Clones: ½ tsp per gallon in feedings, or as a foliar spray at that rate 2–4 times a week Works with all nutrient lines, in soil or hydro

    In stock

    $475.20

  • Humboldt County's Own Snow Storm Ultra 2.5 gallon

    Humboldt County's Own Humboldt County's Own Snow Storm Ultra - 2.5 GAL

    In stock

    Snow Storm Ultra is Humboldt County's Own additive for the snowy, frosted look growers want on finished flowers. It starts in early veg and runs straight through bloom, and HCO says it works with all nutrient lines. Size: 2.5 gallons (9.45 L) Soil: 1 tsp per gallon of water beginning in early veg; some growers go up to 2–3 tsp per gallon at peak bloom Hydro: ½–1 tsp per gallon starting in early veg and run continuously; can be raised to 2–3 tsp Foliar (if it's not in your reservoir): 1 tsp per gallon 3–4 times a week in veg and early bloom; 1–2 tsp per gallon 3–4 times a week in bloom Clones: ½ tsp per gallon in feedings, or as a foliar spray at that rate 2–4 times a week Works with all nutrient lines, in soil or hydro

    In stock

    $264.00


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