Heavy 16 Prime is a quality commercial cannabis nutrient

Prime

  • Improves overall plant nutrition
  • Improves soil/nutrient conditions for better crop yield
  • Supports microbial populations
  • Supports conditions for better plant establishment

NUTRIENT CALCULATOR
FOLIAR CALCULATOR

Heavy Prime

available sizeS

  • 1L – $70.87
  • 4L – $225.22
  • 10L – $503.99
  • 23L – $1,015.87
  • 55L – $2,204.99
  • 208.2L – $6,772.49

Prime Details

  • Improves overall plant nutrition.
  • Improves soil/nutrient conditions for better crop yield.

Heavy 16 – Prime

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 the Heavy 16 program, but its chemistry allows for flexibility throughout cultivation systems and alternative feeding programs from aeroponics to outdoor soil crops.

Prime aids in bolstering the development of a robust root system, and eliminates your need for multiple other additives that would be considered redundant or incomplete. Tastes, colors, flavors, and brix levels will all be heightened while expressing the plants true phenotype.

 

Heavy Prime Safety Data Sheet (SDS)

Follow Heavy 16 on Instagram
  • When your plants hit flower, everything matters: and HEAVY Fire delivers 🔥🌿 Designed with real plant science, Fire is a high-performance bloom stimulant that performs just as well indoors as it does outdoors. Whether you’re running a dialed-in room or growing under the sun, it adapts seamlessly to your environment. Powered by HEAVY 16’s cascading phosphorus delivery system, Fire feeds your plants at multiple stages—supporting early transition, peak bloom, and late-stage development for consistent results from start to finish. ✔️ Stronger plant performance & vigor ✔️ Improved bud development & root support ✔️ Reliable results in any grow setup No matter where you grow… bring the heat. #HEAVY16 #HeavyFire #GetBigGetHEAVY #IndoorGrow #OutdoorGrow
  • Less bottles. More growth. 🌱 HEAVY 16 Veg A+B, like all of our products, was built different: a true two-part base designed to carry your plants through veg with everything they actually need (and nothing they don’t). No bloated feeding charts. No stacking endless additives just to get results. Just precise, balanced nutrition, dialed in from the start. HEAVY 16 in general is engineered around a streamlined, potent system that delivers complex formulas through simple application. And instead of chasing EC/PPM targets, you’re feeding in clean mL-per-gallon measurements. This makes consistency effortless, from small runs to full rooms! What that means in practice: • Fewer inputs per feeding • Lower overall nutrient usage • More predictable results • Less time mixing, more time growing Veg A+B lays the groundwork for everything that comes next: building strong vascular systems, structural integrity, and root mass so your plants can actually handle heavy inputs later in flower 🌺 When it’s all said and done, HEAVY delivers: a balanced, high-performance veg formula that improves overall plant nutrition and optimizes conditions for real growth 🤘 #HEAVY16 #HEAVY16Nutrients #GetBigGetHEAVY #GrowWithHEAVY #HEAVYVeg
  • HEAVY Prime is as versatile as they come! 💪 HEAVY 16 is developed on an organic acid pH scale, as opposed to the common mineral acid pH scale. Because of its buffering or “friendliness”, organic acids allow for optimum microbial development. Hence, HEAVY PRIME is not only a microbial feed, but also naturally functioning pH regulator. To grasp the difference between organic acid and mineral acid, think of orange juice representing organic acid and battery acid representing a hard mineral acid – which is seen in most “pH down” products. If your water source is roughly between 5.5 and 8.0 on pH scale, PRIME’s complexion will naturally titrate pH, eliminating the need for hard acids in the garden. One less step in your routine so that you can spend time where it matters most! #HEAVY16 #HEAVY16Nutrients #BigGrowerPreferred #GrowWithHEAVY #HEAVYPrime
  • FIRE helps create larger, more robust flowers, so why start in veg? 🔥 HEAVY 16 is built around a Cascading Delivery system. We have incorporated slow medium and quick release forms of our phosphates into our FIRE! 🧪 By administering low levels in the last one to two weeks of veg and going through the entire bloom cycle with a gradual ramp, your providing pre-bloom stimulation, maintaining tighter nodal regions for larger flower/fruit development, and supplying intermediate and late-phase #CascadingDelivery of Phosphorous 📈. Not to mention, running Heavy Fire in the late phase of veg will provide for a larger, more resilient root mass, and create larger, more branched foliage. Setting up your crop for a HEAVY tier finish! 🤜🤛 #TeachMeHowToHEAVY #HEAVY16 #HEAVY16Nutrients #GrowWithHEAVY
  • 🧪 Decades in the making, engineered for results! Heavy 16 isn’t just another nutrient line — it’s the product of a lifelong obsession with plant science, agricultural chemistry, and horticultural efficiency. Born in the gardens of Southern California and refined with careful field testing, our formulas were originally developed to meet the real-world demands of high-performance growers. Every product in the Heavy 16 lineup was built from the ground up with: ⚗️ Pharmaceutical-grade raw materials for superior uptake 🧬 Multi-path nutrient delivery systems for redundancy and resilience 🧫 Micro-batch production for full-spectrum quality control 🧠 Intelligent ratios of macro/micronutrients, chelators, and biological co-factors We spent years field-testing with top-tier California farmers — tuning and retuning until every bottle was dialed for maximum translocation, consistency, and performance. The result? A lean, efficient, highly concentrated nutrient system that gives you all the complexity of modern plant science — in a format that’s easy to run, easy to scale, and ridiculously effective in flower. We don’t do hype. We do real R&D — and the difference is in the yield 🤌 #HEAVY16 #HEAVY16Nutrients #GetBigGetHEAVY #BigGrowerPreferred #GrowWithHEAVY
  • Weekend plans 😎🤘 A little bit of work in the garden, and a whole lot of enjoying the fruits of our labor! 😗💨 Hope everyone has a good one! 👊 #HEAVY16 #HEAVY16Nutrients #GetBigGetHEAVY #GrowWithHEAVY
  • If your pup can sniff out quality, trust that your crops can too 💯🐕 This isn’t just some plant food, it’s a professional-grade nutrient system built to give growers strong roots, vibrant plants, and gnarly harvests from seed to bloom 📚👨‍🌾 HEAVY 16 is all about premium ingredients and a streamlined formula that gets the job done without the extra fluff 🤘 #GetBigGetHEAVY #GrowWithHEAVY #DogApproved #HEAVY16 #HEAVY16Nutrients
  • Hot off the production line 🔥 HEAVY16 pushes crops to their ultimate potential using a powerful combination of mineral and natural ingredients 🍃 in a system that is straightforward to apply and maintain. By hand-mixing each batch in small quantities, HEAVY16 can ensure quality and freshness that other brands just can’t match. ⁠ HEAVY16 products are brewed in micro-batches to ensure quality and freshness. Each ingredient is refined to ensure purity and consistency. HEAVY16 is committed to this artisanal approach to quality nutrient production. Based on our phenomenal results and customer feedback, we wouldn’t have it any other way. 🤙 #HEAVY16 #HEAVY16Nutrients #HEAVY16Bud #BudAB #GrowWithHEAVY
  • Couldn’t think of a better mascot 🐶 Showing you where the good stuff is! Drop by your local hydro shop and pick some up, see for yourself! 😎👊 Shot from a year or two back at @downriverhydro! #HEAVY16 #HEAVY16Nutrients #GetBigGetHEAVY #GrowWithHEAVY
  • Paranormal root growth and rhizosphere health 💥 As a root promoter, Heavy Roots will increase branching of lateral roots, but more importantly, it will significantly increase the quantity and size of the true absorption zone, the root hair. But that isn’t all it can do! 🌿 As a root protector, Heavy Roots will elicit naturally induced resistances, or specifically, give the plant a complex layer of systemic acquired resistance (SAR). Tapping the plants evolutionary predisposition to ward off pestilence, we promote these hidden genetic gems through extremely fine derivatives. The result is that the plant becomes more resilient against fungal pathogens as well as insects 🐜 As a drip cleaner and anti-precipitate, Heavy Roots, through its outstanding composition of natural ingredients, will protect against lockout caused by poor water or base nutrients, exotic nutritional programs or faulty mixing methodologies. Heavy Roots will also keep your equipment and media free from salt buildup and scale! 💧 #GrowSmart #GrowYourOwn #GrowWithHEAVY #Indoor #Outdoor #HEAVY16Stacks #BigGrowerPreffered #HEAVY16 #Hydrofarm
When your plants hit flower, everything matters: and HEAVY Fire delivers 🔥🌿 Designed with real plant science, Fire is a high-performance bloom stimulant that performs just as well indoors as it does outdoors. Whether you’re running a dialed-in room or growing under the sun, it adapts seamlessly to your environment. Powered by HEAVY 16’s cascading phosphorus delivery system, Fire feeds your plants at multiple stages—supporting early transition, peak bloom, and late-stage development for consistent results from start to finish. ✔️ Stronger plant performance & vigor ✔️ Improved bud development & root support ✔️ Reliable results in any grow setup No matter where you grow… bring the heat. #HEAVY16 #HeavyFire #GetBigGetHEAVY #IndoorGrow #OutdoorGrow
@heavy16official
@heavy16official
•
Follow
When your plants hit flower, everything matters: and HEAVY Fire delivers 🔥🌿 Designed with real plant science, Fire is a high-performance bloom stimulant that performs just as well indoors as it does outdoors. Whether you’re running a dialed-in room or growing under the sun, it adapts seamlessly to your environment. Powered by HEAVY 16’s cascading phosphorus delivery system, Fire feeds your plants at multiple stages—supporting early transition, peak bloom, and late-stage development for consistent results from start to finish. ✔️ Stronger plant performance & vigor ✔️ Improved bud development & root support ✔️ Reliable results in any grow setup No matter where you grow… bring the heat. #HEAVY16 #HeavyFire #GetBigGetHEAVY #IndoorGrow #OutdoorGrow
1 day ago
View on Instagram |
1/10
Less bottles. More growth. 🌱 HEAVY 16 Veg A+B, like all of our products, was built different: a true two-part base designed to carry your plants through veg with everything they actually need (and nothing they don’t). No bloated feeding charts. No stacking endless additives just to get results. Just precise, balanced nutrition, dialed in from the start. HEAVY 16 in general is engineered around a streamlined, potent system that delivers complex formulas through simple application. And instead of chasing EC/PPM targets, you’re feeding in clean mL-per-gallon measurements. This makes consistency effortless, from small runs to full rooms! What that means in practice: • Fewer inputs per feeding • Lower overall nutrient usage • More predictable results • Less time mixing, more time growing Veg A+B lays the groundwork for everything that comes next: building strong vascular systems, structural integrity, and root mass so your plants can actually handle heavy inputs later in flower 🌺 When it’s all said and done, HEAVY delivers: a balanced, high-performance veg formula that improves overall plant nutrition and optimizes conditions for real growth 🤘 #HEAVY16 #HEAVY16Nutrients #GetBigGetHEAVY #GrowWithHEAVY #HEAVYVeg
@heavy16official
@heavy16official
•
Follow
Less bottles. More growth. 🌱 HEAVY 16 Veg A+B, like all of our products, was built different: a true two-part base designed to carry your plants through veg with everything they actually need (and nothing they don’t). No bloated feeding charts. No stacking endless additives just to get results. Just precise, balanced nutrition, dialed in from the start. HEAVY 16 in general is engineered around a streamlined, potent system that delivers complex formulas through simple application. And instead of chasing EC/PPM targets, you’re feeding in clean mL-per-gallon measurements. This makes consistency effortless, from small runs to full rooms! What that means in practice: • Fewer inputs per feeding • Lower overall nutrient usage • More predictable results • Less time mixing, more time growing Veg A+B lays the groundwork for everything that comes next: building strong vascular systems, structural integrity, and root mass so your plants can actually handle heavy inputs later in flower 🌺 When it’s all said and done, HEAVY delivers: a balanced, high-performance veg formula that improves overall plant nutrition and optimizes conditions for real growth 🤘 #HEAVY16 #HEAVY16Nutrients #GetBigGetHEAVY #GrowWithHEAVY #HEAVYVeg
3 days ago
View on Instagram |
2/10
HEAVY Prime is as versatile as they come! 💪 HEAVY 16 is developed on an organic acid pH scale, as opposed to the common mineral acid pH scale. Because of its buffering or “friendliness”, organic acids allow for optimum microbial development. Hence, HEAVY PRIME is not only a microbial feed, but also naturally functioning pH regulator. To grasp the difference between organic acid and mineral acid, think of orange juice representing organic acid and battery acid representing a hard mineral acid – which is seen in most “pH down” products. If your water source is roughly between 5.5 and 8.0 on pH scale, PRIME’s complexion will naturally titrate pH, eliminating the need for hard acids in the garden. One less step in your routine so that you can spend time where it matters most! #HEAVY16 #HEAVY16Nutrients #BigGrowerPreferred #GrowWithHEAVY #HEAVYPrime
@heavy16official
@heavy16official
•
Follow
HEAVY Prime is as versatile as they come! 💪 HEAVY 16 is developed on an organic acid pH scale, as opposed to the common mineral acid pH scale. Because of its buffering or “friendliness”, organic acids allow for optimum microbial development. Hence, HEAVY PRIME is not only a microbial feed, but also naturally functioning pH regulator. To grasp the difference between organic acid and mineral acid, think of orange juice representing organic acid and battery acid representing a hard mineral acid – which is seen in most “pH down” products. If your water source is roughly between 5.5 and 8.0 on pH scale, PRIME’s complexion will naturally titrate pH, eliminating the need for hard acids in the garden. One less step in your routine so that you can spend time where it matters most! #HEAVY16 #HEAVY16Nutrients #BigGrowerPreferred #GrowWithHEAVY #HEAVYPrime
1 week ago
View on Instagram |
3/10
FIRE helps create larger, more robust flowers, so why start in veg? 🔥 HEAVY 16 is built around a Cascading Delivery system. We have incorporated slow medium and quick release forms of our phosphates into our FIRE! 🧪 By administering low levels in the last one to two weeks of veg and going through the entire bloom cycle with a gradual ramp, your providing pre-bloom stimulation, maintaining tighter nodal regions for larger flower/fruit development, and supplying intermediate and late-phase #CascadingDelivery of Phosphorous 📈. Not to mention, running Heavy Fire in the late phase of veg will provide for a larger, more resilient root mass, and create larger, more branched foliage. Setting up your crop for a HEAVY tier finish! 🤜🤛 #TeachMeHowToHEAVY #HEAVY16 #HEAVY16Nutrients #GrowWithHEAVY
@heavy16official
@heavy16official
•
Follow
FIRE helps create larger, more robust flowers, so why start in veg? 🔥 HEAVY 16 is built around a Cascading Delivery system. We have incorporated slow medium and quick release forms of our phosphates into our FIRE! 🧪 By administering low levels in the last one to two weeks of veg and going through the entire bloom cycle with a gradual ramp, your providing pre-bloom stimulation, maintaining tighter nodal regions for larger flower/fruit development, and supplying intermediate and late-phase #CascadingDelivery of Phosphorous 📈. Not to mention, running Heavy Fire in the late phase of veg will provide for a larger, more resilient root mass, and create larger, more branched foliage. Setting up your crop for a HEAVY tier finish! 🤜🤛 #TeachMeHowToHEAVY #HEAVY16 #HEAVY16Nutrients #GrowWithHEAVY
1 week ago
View on Instagram |
4/10
🧪 Decades in the making, engineered for results! Heavy 16 isn’t just another nutrient line — it’s the product of a lifelong obsession with plant science, agricultural chemistry, and horticultural efficiency. Born in the gardens of Southern California and refined with careful field testing, our formulas were originally developed to meet the real-world demands of high-performance growers. Every product in the Heavy 16 lineup was built from the ground up with: ⚗️ Pharmaceutical-grade raw materials for superior uptake 🧬 Multi-path nutrient delivery systems for redundancy and resilience 🧫 Micro-batch production for full-spectrum quality control 🧠 Intelligent ratios of macro/micronutrients, chelators, and biological co-factors We spent years field-testing with top-tier California farmers — tuning and retuning until every bottle was dialed for maximum translocation, consistency, and performance. The result? A lean, efficient, highly concentrated nutrient system that gives you all the complexity of modern plant science — in a format that’s easy to run, easy to scale, and ridiculously effective in flower. We don’t do hype. We do real R&D — and the difference is in the yield 🤌 #HEAVY16 #HEAVY16Nutrients #GetBigGetHEAVY #BigGrowerPreferred #GrowWithHEAVY
@heavy16official
@heavy16official
•
Follow
🧪 Decades in the making, engineered for results! Heavy 16 isn’t just another nutrient line — it’s the product of a lifelong obsession with plant science, agricultural chemistry, and horticultural efficiency. Born in the gardens of Southern California and refined with careful field testing, our formulas were originally developed to meet the real-world demands of high-performance growers. Every product in the Heavy 16 lineup was built from the ground up with: ⚗️ Pharmaceutical-grade raw materials for superior uptake 🧬 Multi-path nutrient delivery systems for redundancy and resilience 🧫 Micro-batch production for full-spectrum quality control 🧠 Intelligent ratios of macro/micronutrients, chelators, and biological co-factors We spent years field-testing with top-tier California farmers — tuning and retuning until every bottle was dialed for maximum translocation, consistency, and performance. The result? A lean, efficient, highly concentrated nutrient system that gives you all the complexity of modern plant science — in a format that’s easy to run, easy to scale, and ridiculously effective in flower. We don’t do hype. We do real R&D — and the difference is in the yield 🤌 #HEAVY16 #HEAVY16Nutrients #GetBigGetHEAVY #BigGrowerPreferred #GrowWithHEAVY
2 weeks ago
View on Instagram |
5/10
@heavy16official
@heavy16official
•
Follow
Weekend plans 😎🤘 A little bit of work in the garden, and a whole lot of enjoying the fruits of our labor! 😗💨 Hope everyone has a good one! 👊 #HEAVY16 #HEAVY16Nutrients #GetBigGetHEAVY #GrowWithHEAVY
3 weeks ago
View on Instagram |
6/10
@heavy16official
@heavy16official
•
Follow
If your pup can sniff out quality, trust that your crops can too 💯🐕 This isn’t just some plant food, it’s a professional-grade nutrient system built to give growers strong roots, vibrant plants, and gnarly harvests from seed to bloom 📚👨‍🌾 HEAVY 16 is all about premium ingredients and a streamlined formula that gets the job done without the extra fluff 🤘 #GetBigGetHEAVY #GrowWithHEAVY #DogApproved #HEAVY16 #HEAVY16Nutrients
3 weeks ago
View on Instagram |
7/10
Hot off the production line 🔥 HEAVY16 pushes crops to their ultimate potential using a powerful combination of mineral and natural ingredients 🍃 in a system that is straightforward to apply and maintain. By hand-mixing each batch in small quantities, HEAVY16 can ensure quality and freshness that other brands just can’t match. ⁠ HEAVY16 products are brewed in micro-batches to ensure quality and freshness. Each ingredient is refined to ensure purity and consistency. HEAVY16 is committed to this artisanal approach to quality nutrient production. Based on our phenomenal results and customer feedback, we wouldn’t have it any other way. 🤙 #HEAVY16 #HEAVY16Nutrients #HEAVY16Bud #BudAB #GrowWithHEAVY
Hot off the production line 🔥 HEAVY16 pushes crops to their ultimate potential using a powerful combination of mineral and natural ingredients 🍃 in a system that is straightforward to apply and maintain. By hand-mixing each batch in small quantities, HEAVY16 can ensure quality and freshness that other brands just can’t match. ⁠ HEAVY16 products are brewed in micro-batches to ensure quality and freshness. Each ingredient is refined to ensure purity and consistency. HEAVY16 is committed to this artisanal approach to quality nutrient production. Based on our phenomenal results and customer feedback, we wouldn’t have it any other way. 🤙 #HEAVY16 #HEAVY16Nutrients #HEAVY16Bud #BudAB #GrowWithHEAVY
@heavy16official
@heavy16official
•
Follow
Hot off the production line 🔥 HEAVY16 pushes crops to their ultimate potential using a powerful combination of mineral and natural ingredients 🍃 in a system that is straightforward to apply and maintain. By hand-mixing each batch in small quantities, HEAVY16 can ensure quality and freshness that other brands just can’t match. ⁠ HEAVY16 products are brewed in micro-batches to ensure quality and freshness. Each ingredient is refined to ensure purity and consistency. HEAVY16 is committed to this artisanal approach to quality nutrient production. Based on our phenomenal results and customer feedback, we wouldn’t have it any other way. 🤙 #HEAVY16 #HEAVY16Nutrients #HEAVY16Bud #BudAB #GrowWithHEAVY
3 weeks ago
View on Instagram |
8/10
@heavy16official
@heavy16official
•
Follow
Couldn’t think of a better mascot 🐶 Showing you where the good stuff is! Drop by your local hydro shop and pick some up, see for yourself! 😎👊 Shot from a year or two back at @downriverhydro! #HEAVY16 #HEAVY16Nutrients #GetBigGetHEAVY #GrowWithHEAVY
4 weeks ago
View on Instagram |
9/10
Paranormal root growth and rhizosphere health 💥 As a root promoter, Heavy Roots will increase branching of lateral roots, but more importantly, it will significantly increase the quantity and size of the true absorption zone, the root hair. But that isn’t all it can do! 🌿 As a root protector, Heavy Roots will elicit naturally induced resistances, or specifically, give the plant a complex layer of systemic acquired resistance (SAR). Tapping the plants evolutionary predisposition to ward off pestilence, we promote these hidden genetic gems through extremely fine derivatives. The result is that the plant becomes more resilient against fungal pathogens as well as insects 🐜 As a drip cleaner and anti-precipitate, Heavy Roots, through its outstanding composition of natural ingredients, will protect against lockout caused by poor water or base nutrients, exotic nutritional programs or faulty mixing methodologies. Heavy Roots will also keep your equipment and media free from salt buildup and scale! 💧 #GrowSmart #GrowYourOwn #GrowWithHEAVY #Indoor #Outdoor #HEAVY16Stacks #BigGrowerPreffered #HEAVY16 #Hydrofarm
@heavy16official
@heavy16official
•
Follow
Paranormal root growth and rhizosphere health 💥 As a root promoter, Heavy Roots will increase branching of lateral roots, but more importantly, it will significantly increase the quantity and size of the true absorption zone, the root hair. But that isn’t all it can do! 🌿 As a root protector, Heavy Roots will elicit naturally induced resistances, or specifically, give the plant a complex layer of systemic acquired resistance (SAR). Tapping the plants evolutionary predisposition to ward off pestilence, we promote these hidden genetic gems through extremely fine derivatives. The result is that the plant becomes more resilient against fungal pathogens as well as insects 🐜 As a drip cleaner and anti-precipitate, Heavy Roots, through its outstanding composition of natural ingredients, will protect against lockout caused by poor water or base nutrients, exotic nutritional programs or faulty mixing methodologies. Heavy Roots will also keep your equipment and media free from salt buildup and scale! 💧 #GrowSmart #GrowYourOwn #GrowWithHEAVY #Indoor #Outdoor #HEAVY16Stacks #BigGrowerPreffered #HEAVY16 #Hydrofarm
4 weeks ago
View on Instagram |
10/10

FIND YOUR LOCAL HEAVY 16 RETAILER

Find a retailer

QUESTIONS? COMMENTS?

Contact Us
Copyright © 2026 Heavy 16. All rights reserved