Advanced Nutrients Gl525050-12 Big Bud Liquid Fertilizer, 250 Ml.250 Liter, Brown/A
- Larger Heavier Denser Flowers
- Flowers With More Essential Oils Aromatics Terpenoids Phenols And Other Potency Factors
- Measurable Significant Increases In Overall Harvest Weight And Market Value
- No Assembly Required
Looking to maximize your harvest and boost your flower’s essential oil, aroma, and terpenoid levels? Look no further than Advanced Nutrients GL525050-12 Big Bud Liquid Fertilizer! This 250 mL.250 Liter fertilizer is specifically designed to help your plants reach their full potential, delivering measurable, significant increases in overall harvest weight and market value. Plus, it’s easy to use – simply pour it into your watering can and go!
Tps Nutrients Complete Plant Nutrient Starter Kit, Fertilizer For Veg Through Bloom – Plus Guide And Foliar Spray Bottle
- Everything Needed For A Successful Cycle From Grow To Bloom!
- Complete Component Series Base A+B 32Oz/Each Silica Gold 16Oz N-Primer 16Oz Calmag Oac 16Oz Root Boost 8Oz Canopy Boost Foliar 8Oz Bloom 16Oz And Signal 16Oz.
- Includes Foliar Spray Bottle For Spraying Your Plants Leaves.
- Also Contains Tps Component Series Plant Growth Booklet With Tips And Use Instructions.
- Best Way To Try Out The Tps Nutrients Lineup For Big Blooming Plants At A Great Price!
The TPS Nutrients Complete Plant Nutrient Starter Kit is the best way to try out the TPS Nutrients lineup for big blooming plants! This kit includes everything you need to start your cycle, from grow to bloom, including a Foliar Spray Bottle for spraying your plants leaves, the TPS Component Series Plant Growth Booklet with Tips and Use Instructions, and the TPS Nutrients Complete Plant Nutrient Starter Kit. This kit is great for beginners or those who want to try out different TPS Nutrients lineup for big blooming plants at a great price!
Fox Farm Fx14049 Liquid Nutrient Trio Soil Formula: Big Bloom, Grow Big, Tiger Bloom (Pack Of 3 – 32 Oz. Bottles)
- A 3-Pack Of Favorite Liquid Fertilizers From Foxfarm
- Get The Right Juice For The Right Use
- Start With Grow Big Hydro For Abundant Green Growth
- Switch To Tiger Bloom At The First Sign Of Bud Set Or Flowering
- Use Big Bloom Throughout All Growing Cycles To Heal Root Systems And Increase Nutrient Cycling
- Big Bloom Plant Food Concentrate Is Ideal For All Flowering And Fruiting Plants
- Ideal For Mature Late-Season Flowers And Fruit
- Tiger Bloom Is An Ultra-Potent Fast-Acting High-Phosphorus Fertilizer
- Grow Big Produces Lush Vegetative Compact Growth
For the garden that wants to see big blooms, lush growth and bountiful harvests, try Fox Farm’s FX14049 Liquid Nutrient Trio Soil Formula. This 3-pack of favorite liquid fertilizers will give you the right juice for the right use, starting with Grow Big Hydro for abundant green growth. Switch to Tiger Bloom at the first sign of bud set or flowering, and use Big Bloom throughout all growing cycles to heal root systems and increase nutrient cycling. Big Bloom plant food concentrate is ideal for all flowering and fruiting plants, while Tiger Bloom is an ultra-potent, fast-acting, high-phosphorus fertilizer that produces lush, vegetative, compact growth.
Kelp It Real, High Grade Soluble Seaweed Extract 0-0-14 Certified Vegan Omri Listed Garden Fertilizer (8Oz)
- Kelp It Real – Growganica’S Kelp It Real Is The Highest Quality Organic Cold Pressed Kelp Concentrate Powder Available. Safe For The Environment Omri Organic And Vegan Certified. Perfect For Houseplants Greenhouse Plants And Outdoor Plants Grown In Any Medium Soil Hydro Peat Coco
- Expanded Root Zone – Applied Directly To The Roots Zone Kelp Will Dramatically Enhance Their Health And Vitality.
- Balances Soil Conditions – Kelp Helps Regulate Soil Ph Keeping Conditions Close To The Proper Range For Maximum Absorption Of Nutrients
- Builds Stronger Healthier Plants – Beneficial For All Stages Of Growth Kelp Fortifies Plant Development With Rich Concentrations Of More Than 70 Vitamins Minerals And Enzymes. These Vitamins Give Your Plant Essential Energy For Growth Even Under Stress Or Accelerated Growth.
- Enlarges And Improves Bloom – Kelp Is Beneficial To Plants At All Stages And Yields Increased Size/Bloom Of Flowers Fruits And Vegetables.
- Organic Made In Usa
Kelp It Real is the highest quality organic cold pressed kelp concentrate powder available. Kelp It Real is safe for the environment, OMRI Organic, and vegan certified. Kelp It Real is perfect for HOUSEPLANTS, GREENHOUSE PLANTS, AND OUTDOOR PLANTS grown in any medium SOIL, HYDRO, PEAT, COCO EXPANDED ROOT ZONE. Kelp It Real helps regulate soil pH, keeping conditions close to the proper range for maximum absorption of nutrients. Kelp It Real builds stronger healthier plants with rich concentrations of more than 70 vitamins, minerals, and enzymes. Kelp It Real enlarsges and improves bloom of flowers, fruits, and vegetables. Kelp It Real is organic, made in the USA, and has a 100% satisfaction guarantee.
Canna Growing Nutrients Set
- 1 X Canna Coco A + B 1Ltr
- 1 X Canna Rhizotonic 1Ltr
- 1 X Canna Cannazym 1Ltr
- 1 X Canna Boost 1Ltr
- 1 X Pk 13/14 1Ltr
Looking to get your cannabis garden started in the right direction? Look no further than the CANNA Growing Nutrients Set! This set contains everything you need to get started including: CANNA Coco A + B 1ltr, CANNA Rhizotonic 1ltr, CANNA Cannazym 1ltr, CANNA Boost 1ltr, and Pk 13/14 1ltr. This is the perfect set for beginner growers or those who are looking to update their garden!
Bloom Bud Builder & Flower Hardener Plant Nutrient And Supplement, Triggers Fast Flowering By Tps Nutrients, 1 Quart (32 Oz)
- Triggers Fast Flower Onset Tps Nutrients Bloom Formula Stimulates Flowering And Bud Growth.
- Sustains Peak Bloom Growth Bloom Formula Contains A High Concentration Of Tricoderma A Beneficial Microbe Proven To Induce Cell Expansion And Increase Rapid Bloom Growth.
- Increases Flower Density And Hardness Tps’S Bloom Formula Is Proven To Solidify Buds It Contains All Of The Building Blocks For Thick And Dense Blooms.
- High Concentration Of Bio-Avaiable Phosphorus All Of Tps’S Fertilizers And Supplements Are Nutrient Dense Reducing Waste And Making Sure You Don’T Pay For Water To Be Shipped. Use The Entire Bloom Cycle.
- Designed To Be Sustainable Every Ingredient And Every Process Was Designed To Keep Sustainability In Mind. Tps Nutrients Chooses Only The Best And Most Renewable Materials To Build These Products.
TPS Bloom Formula is the perfect plant fertilizer for triggering fast flowering and bud growth. With a high concentration of Tricoderma, a beneficial microbe, this formula sustains peak bloom growth and increases flower density and hardness.
Dutch Science Nutrients Bloom Baby Bloom (Flower Stage) 100% Organic Plant Bud/Flower Fertilizer (1.1 Pounds/500Grams)
- Our Flowering Stage Formula Is Specially Designed To Boost Bud Growth And Density.
- 6-8-12 Npk (Nitrogen Phosphorus And Potassium). Our 100% Organic Formula Has 50+ Micronutrients Including Calcium Magnesium Manganese And Iron.
- Easily Mix In The Nutrients You Need With Fresh Water Store The Rest. This Helps Keep Your Nutrients Fresh And Effective.
- Contains Organic Humates – They Help Your Garden Retain More Water Increase Root And Plant Strength And Help Your Plants Absorb More Nutrients.
- Our Nutrients Can Be Used In Soil Coco Or Hydroponic Home Grow Systems.
Looking to help your plants grow big and strong? Check out our Dutch Science Bloom Baby Bloom! This flowering stage formula is specifically designed to boost bud growth and density, with 6-8-12 NPK (nitrogen, phosphorus, and potassium). Plus, our 100% organic formula has 50+ micronutrients, including calcium, magnesium, manganese, and iron. Easily mix in the nutrients you need with fresh water, store the rest, and you’re good to go!
Advanced Nutrients 1201-14 Bloom Ph Perfect Fertilizer, 1 Liter, Brown/A
- Promotes Healthy Plants And Fastest Growth Possible
- Pharmaceutical Grade Precursors
- More Chelates Per Micronutrient Than Other Manufacturers
- Nutrient Absorption From A Broader Ph Spectrum
- Concentrated Less-Expensive Formula
Looking for a fertilizer that will promote healthy plants and fastest growth possible? Look no further than Advanced Nutrients 1201-14 Bloom pH Perfect Fertilizer! This Pharmaceutical grade fertilizer is more chelates per micronutrient than other manufacturers, and has a broader pH spectrum to ensure nutrient absorption from a wider range of soil conditions. Plus, it’s concentrated, so you’ll save money on the price per liter.
Dakine 420 Nitro Nutrients Advanced Hydroponic Fertilizer & Indoor Plant Food Starter Kit
- Grow Our Nitrogen Fertilizer Is Free Of Chloride Sodium And Heavy Metals And Boasts A Perfect Ph Balance Formulated For Blooming And Flowering Plants
- Base Our Precisely Blended Indoor Plant Food Is Made To Meet All Your Plants’ Needs Via Carefully Balanced Npk Plus Trace Minerals For Colossal Bud Development
- Bloom Our Super-Finishing Plant Food Formula Supplies Npk In Perfect Balance (With 3 Times More Potassium Than Nitrogen) To Assure High Yields And Trophy Production
- Super Clean Our 100% Water-Soluble Formula Is Crystal Clear Won’T Clog Your Lines Plug Your Tips Or Leave Residue In Your Reservoir Meaning You Spend Less Time Cleaning
- Dakine Difference Dakine 420 Is Guided By Real Bona-Fide “Mad Scientists” With Over A Half-Century Of Experience Working In State-Of-The-Art Indoor Growing Facilities; Discover The Difference Today
The DaKine 420 Nitro Nutrients Advanced Hydroponic Fertilizer & Indoor Plant Food Starter Kit is the perfect way to start growing your own plants indoors. Our nitrogen fertilizer is free of chloride, sodium, and heavy metals, and boasts a perfect pH balance formulated for blooming and flowering plants. Our precisely blended indoor plant food is made to meet all your plants’ needs via carefully balanced NPK, plus trace minerals, for colossal bud development. Finally, our super-finishing plant food formula supplies NPK in perfect balance (with 3 times more potassium than nitrogen) to assure high yields and trophy production.
Prescription Blend – Complete Nutrient Kit – Optimized In Medical Gardens For Use With Hydroponics, Coco And Soil
- Complete 6 Part Nutrient Kit – Includes Nutrients And Supplements 32Oz Core A 32Oz Core B 16Oz Bio-Si 16Oz Big Data 16Oz Kelp-Ful 16Oz Precursor 1
- Easy To Use – A Simple Feed Program And Flexible Pouches Make It Easy To Achieve Professional Results
- Optimized In Medical Gardens – Used Exclusively In Some Of Oregons Premier Gardens Since 2007. Handcrafted In Small Batches Brewed To Our Exacting Standards.
- Science – Our Nutrient Formulas Are The Result Of Understanding Plant Physiology And Biochemistry Good Old Fashion Testing And Responsible Gardening Practices Giving Your Plants The Nutrients Required For A True Prescription Grade Harvest
- Sustainable – Everything We Do From Choosing Renewable Ingredients Shipping In Plain Brown Boxes Is Based On Our Mission To Provide Your Garden With The Highest Quality Nutrients In A Way That Preserves Our Planet.
Looking for a complete nutrient kit specifically designed for hydroponics, coco and soil gardening? Look no further than our Prescription Blend! This kit includes all the necessary nutrients and supplements for achieving professional results, and is tailored specifically for use in medical gardens. With easy to use feed programs and flexible pouches, it’s easy to get the results you need. Plus, our nutrient formulas are based on science and responsible gardening practices, ensuring your plants receive the nutrients they need for a true prescription grade harvest.
Best Nutrients For Cannabis
Which nutrients are required for cannabis plants?
A cannabis garden needs a combination of essential nutrients and trace, or micro, nutrients. A balanced diet of essential nutrients and trace minerals is the best way to grow marijuana plants.
NPK (for nitrogen, phosphorus, or potassium) are the main three nutrients cannabis plants must grow. NPK, which are also the building blocks for any marijuana fertilizer, is essential to any plant that grows. Cannabis plants also require oxygen and carbon dioxide. These are acquired through airflow.
The building blocks for any marijuana fertilizer are nitrogen, phosphorus and potassium.
Photo by Gina Coleman/Weedmaps Marijuana flowers also require secondary nutrients. These include magnesium, calcium, and sulfur.
Finally, there is a more expansive group of trace, or micro, nutrients that boost marijuana plant growth. These essential micronutrients include silicon, manganese and iron.
Bottom Line On Weed Fertilizer
Using the right fertilizers and nutrients in the right quantities at the right time are essential to achieving an optimal cannabis grow. Ultimately, the best fertilizer for cannabis is the one that works for your schedule, budget, and level of desired effort. The right balance is crucial for cannabis cultivation. Give your plants the care they deserve and you will reap the rewards in delicious, healthy marijuana buds.
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Popular Nutrient Brands For Indoor Cannabis
Plant nutrients or fertilizers mimic the natural amount of nutrients found in soil, often with some added benefits. Since growing cannabis indoors is becoming an industry standard, plant nutrients have evolved since most indoor grows use alternative substrates. You can read this article for more information about substrates. Let’s examine the many nutrient options available.
What are Plant Nutrients and Fertilizers?
Essential nutrients are essential for plants’ growth and well-being. Fertilizers supply them with these vital nutrients. All living organisms require essential nutrients in order to survive. Many of the essential nutrients for plant growth are found in soil. The demand for plant nutrients is increasing with the growing popularity of indoor and hydroponic gardening.
Nutrition basics: These are the 17 essential elements for healthy plants. They include carbon (C), hydrogen [H], oxygen (O), nitrogen (“N”), phosphorous (S”), potassium (K), sulfur (2S), magnesium (3Mg), calcium (5Ca), iron (4Fe), manganese (1Mn), zinc (0Zn), copper (6Cu), boron (30B), molybdenum (10Mo), chlorine (12Cl), and nickel (9Ni). There are some additional trace elements, but these are the must haves for your plant nutrients or fertilizer.
The Most Popular Indoor Cannabis Plant Nutrients Based on a multitude of articles, blogs, research, buyer guides and other information about fertilizers, I created a list that included the top-rated brands. Growlink is not associated with any of the brands. We’re simply listing the brands that consistently made the media list mentions. Here we go:
Fox Farm: A family-run business dedicated to producing high quality fertilizers, soils and liquid plants foods, Fox Farm ranks at the top of every list. Every formula is tested and verified in the greenhouse. This family business has been delivering top quality customer service and uncompromising quality since 1984. You can choose from a vast array of products. Advanced Nutrients has a similar selection. They also offer a unique 100% Guarantee. Since they develop, test, manufacture, and market their products to specific customers, they’re confident in the quality of their products. They create proprietary blends to target specific nutritional benefits, and you can check out their products here General Hydroponics: Located in scenic Santa Rosa, Calif., General Hydroponics tests its products at an on-site location that allows them to test over 100 plant varieties for yield, flavor, nutrition, appearance, disease, and growth rate. Its mission is to create a more clean and sustainable world. They have been offering new products for growers around the world for over 40 years. Check out Dyno-Gro’s products. Dyno-Gro was founded in 1983 and has offered growers a single, simple-to-use, affordable liquid nutrient. Useful in hydroponics or soil, their formulas have 100% of the macro, and micronutrients plants require. It is important to have a simple approach for plant-feeding. There are fewer products, less confusion and more yields. They made the list, so they’re doing something right! You can check out the products of Botanicare here Bontanicare. Botanicare is a plant cultivation expert and provides superior products as well as advice and support that will help growers to produce higher yielding crops. Botanicare has become a leading market player in hydroponics. It began in an Arizona backyard gardening shop as an experimental plant nutrition. Botanicare has been innovating over 20 years to help growers grow. Click here to download the free Ebook.
Super Soil Concentrate Marijuana fertilizer – How to Use It:
Nature’s Living Soil strongly recommends that seedlings are not planted directly into the soil. It is recommended that seedlings be planted in small areas of normal soil to allow for growth into the mixture super soil. Once done, it is time to water.
Your cannabis plants will not require any additional nutrients once they have been potted in Nature’s Living Soil. It will raise your PH level to a safe level and supply all of the nutrients your plants need.
Nature’s Super Soil cannabis fertilizer, Nature’s Living Soil Super Soil is one of our top picks.
Take a look at the positive reviews cannabis growers have given the soil.
According to growers, they are very content and their plants thrive. Another grower said that the increase in daily growth after transplanting their seeds was obvious.
How To Select The Best Nutrients For Growing Cannabis
A first time grower may find it difficult to choose the best cannabis nutrients. This can also mean that you will spend more money than needed. New growers may feel overwhelmed by the sheer number of options available, which can include organic and hydroponic nutrients. Leafly.com, a popular online resource on cannabis, states that you will be able to select the product you want without having to spend a lot of money.
While cannabis plants require very low concentrations of mineral and non-mineral elements to thrive, these elements are still vital to the overall health and growth of the plant.
The majority of premium potting earths for cannabis growing are soilless. Indoor cannabis growers tend to grow hydroponically even though they use buckets of soil and water each plant manually. Hydroponic nutrients make up the majority of all nutrients that are sold for indoor cannabis cultivation. Concentrated mineral salts are usually available in liquid or powder form. They are meant to be mixed in water until they are suitable for use by the cannabis plant.
The non-inert material in soil is different from hydroponic media. It contains many macro and microscopic nutrients. These substances contain a lot of nutritional value, but they must be used by soil-dwelling bacteria and fungi to make them useful to plants. The availability of non-organic nutrients for soil growth is less frequent at grow shops because they are more likely to build up quickly in soil and cause damage to the soil.
The benefits of organic fertilizers and nutrients are greater for cannabis than those that can be applied immediately. They are more inert and contain more nutrients that will benefit soil organisms. The first-time grower who decides to use soil as their medium would be well advised to stick to organic fertilizers and nutrients.
When and How To Flush Cannabis
Timing is everything when flushing marijuana. Flushing cannabis can remove all nutrient accumulation from the roots and soil giving your plants a fresh start. The process of flushing your cannabis plants allows them to take in any remaining nutrients. By flushing your cannabis plants before harvest you can avoid a harsh and unsatisfying end-product.
You can still find the valuable nutrients and minerals you used to grow cannabis plants by not flushing them properly. Flushing removes all nutrients and improves the overall quality of your bud. Flushing too soon or too frequently can reduce nutrients and stop plants from growing. Flushing too early can also result in yellowing or discolored leaves.
Finding the best time to start flushing will vary based on how close your plants are to harvest and the knowledge and methods used by the grower.
Flushing cannabis typically takes place between two and four weeks after it has been harvested. Flushing cannabis should begin six weeks after it has finished its 8-week flowering phase. This is when the trichomes start to turn a cloudy, white color.
How to Flush Cannabis. To ensure that the pH of your water is within the right range to grow cannabis, tap it.
2. The plants should be watered at the same time as normal without any additional nutrients. Do not give plants extra water to avoid deficiencies.
3. Repeat 15 minutes later.
4. You can use a TDS reader (to measure the totaldissolved solids) to verify that the flush succeeded and determine how clean the water runoff was.
It’s ideal that the water draining out of the pots is as close as possible to the TDS (total dissolved solids) reading of the neutral water you’re flushing with.
5. Keep an eye out for signs of too much yellowing. A plant may lose its color fast due to the pre-harvest flush. While it is normal for plants to yellow, you should harvest the plant before they turn yellow.
Coast Of Maine Products, Growing Cannabis
Choosing what soil/medium to use for growing your marijuana plants is arguably the most important decision you’ll make. The wrong mixture could lead to weeks of testing, flushing, measuring, and even writing into help forums. If you choose the right blend, your experience could include sharing pictures on Weedstagram and harvests that never end.
Stonington Blend Grower’s mix is the perfect choice if you want a simple experience. Our team has done the legwork for you. You can trust our knowledge to help your marijuana plants achieve their maximum potential.
Is there a pH that is optimal?
What is the minimum water retention requirement?
How do you determine the optimal nutrient mix?
Which is the most optimal timing to allow nutrients to become available?
Is there a way to make sure you get the freshest tasting food?
What soil texture does the plant prefer?
What’s the preferred soil drainage/moisture for your plant?
Coast of Maine’s Stonington is a “super soil”, which includes everything that cannabis plants need in order to have a successful grow cycle. YOU ONLY NEED TO ADD WATER!
Want To Mix Your Own Soil?
Stonington Blend Grower’s Mixed has won rave reviews by cultivators. But, not everyone wants to make their own super soil. Here are the details!
Buy Now Cannabis Essential Products:
The Very Best Veg Stage! Stonington Blend was made specifically to cultivate cannabis. Complex “super soil” is high in nutrients. This blend has been formulated to improve budding, blossoming and root growth. This blend is ideal for large-sized containers or larger pots. It contains mycorrhizal mushrooms, alfalfa meal, fish bones, alfalfa, and worm castings. Grow in 15-gallon containers for best results.
OMRI Listed, Available in 1.5cf bags and 60cf supersacks!
It All About the Base Bar Harbor Blend Organic Potting Soil is the perfect choice for gardeners looking to mix their soil and want a basic soil. It is also organic.
Produced with top organic ingredients such as lobster kelp, compost and perlite.
OMRI is Listed! Available in 4 sizes, and Super Sacks!
Simply the best! It is the best. Sprout Isle Blend Organic Seed Starter is mild in starter charges, and contains mycorrhizae (worm castings) and kelp so that seeds do not get overloaded. Outstanding results! You can use it in flats or cell packs.
OMRI is Listed. Super Sacks available in 3 sizes!
Stonington Organic Plant Food (5-2-4), with 4% Calcium, is fine dining for plants. You can also use it as a biostimulant. Biostimulants work on plants through different ways to increase crop yields, quality, and shelf-life. You will find a combination of lobster, crab, fish, kelp and other essential natural ingredients. You can use it to increase the biological activity of soil.
Contact Support Center Photobiology Book Become an Authorized Representative Authorized Resellers Find Webinars Tips for Monitoring Cannabis’ pH
Tips for Monitoring Cannabis’ pH
This entry was posted at 10:42h on Blog Cannabis Culture Guide Science Technology Best Methods for Monitoring pH For Cannabis Editor’s note: Properly balancing pH is critical to making sure that cannabis can be absorbed and dissolved in water. We will be releasing some tips to help you monitor and measure pH in the Fluence Cannabis Cultivation Guide, which is due to release later this month.
This pH scale, which can range from zero to 14.0, provides information about how chemical compounds interact with one other. Keep in mind that pH represents the amount of hydrogenions contained within a solution. However, pH can also be understood intuitively in terms of acid (vinegar), ammoniacal nitrogen (baking soda) and alkaline bases like potassium bicarbonate (baking soda).
Caption: The pH determines whether or not nutrients are available. The pH level for cannabis is between 5.8-6.2.
Values less than 7.0 indicate acidity and values higher than 7.0 indicate alkalinity. Deionized water has a neutral pH of 7.0. Since the pH scale is a logarithmic operation, small variations in pH values can make a big difference. For example, a pH level of 4.0 is ten times as acidic as a pH level of 5.0. For plants, pH is important because it affects the form of the nutrients in the substrate.
One example is that pH low can increase the solubility for micronutrients like manganese or iron. This makes them more accessible to plants. Toxicities can be caused by this. However, as pH rises, micronutrients along with phosphorous become less soluble in water and are less accessible to plants.
Unbalanced pH can make nutrients in your plant’s soil unusable, regardless how concentrated your nutrient solution may be. Below is an illustration of how pH affects nutrient availability.
Cannabis, like many plants, prefers slightly acidic soil conditions. Cannabis can tolerate a range of pH values (5.0 to 7.0), without symptoms such as bronzing and interveinal chlorosis, but it will not grow well in pH levels beyond the ideal range of 5.8 to 6.2. To maintain optimal pH levels, cultivators should test pH levels every two days, and adjust the pH as needed.
Testing pH using a digital meter is simple. Combination pH/EC meters are relatively inexpensive and require little training to use. This permanent option is a better alternative to the use of dye kits and disposable pH strips..Best Nutrients For Cannabis