420 Culture 420 Magazine's mission to create cannabis awareness with marijuana facts, cultivation tips, grow support, scientific data and medical news

Introduce Yourself

Your opportunity to tell the 420 community a little about yourself and your interest in cannabis with a brief introduction
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420 Sponsors

The best in lighting, nutrients, growing accessories and merchandise provided by our sponsors, plus special discounts only available at 420 Magazine
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420 News & Updates

Articles and announcements about the 420 Magazine mission, our company news and events, and website updates
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420 Product Reviews

Both official and novice reviews of new and existing products, including LED lights, fans & filters, nutrients and other grow room essentials
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Cannabis Facts & Information

A mine of information related to cannabis, plus some lesser known facts about marijuana and its history you'll be surprised to discover
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The Grow Room All your questions and concerns about growing cannabis & medical marijuana answered in journals, pictures and tutorials from real growers

How to Grow Marijuana

The basics of growing marijuana in soil, coco or hydro - a knowledge base for getting the very best out of your cannabis grow
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Grow Journals

Meet expert cultivators sharing grow journals, tutorials and pictures in our gallery, while helping others answer frequently asked questions
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Frequently Asked Questions

Digest and learn from a wide range of common gardening inquiries and answers - if you have a grow related query, feel free to ask here
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Problems, Pests & Disease Control

How to deal with mites, thrips, mold, powdery mildew and other common growing problems that can destroy plants in your garden
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Grow Lighting

General lighting discussion regarding MH/HPS, LEDs, PPFD, PAR, spectra and lighting intensity with press releases and articles on sponsor grow lights
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Plant and Bud Photos

Thousands of strains photographed by 420 members showcasing pictures of their plants, nugs and colas - some sticky eye candy to browse!
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Growers Lounge

Light up, relax and share grow stories with other farmers, connoisseurs and growers in a safe and secure, anonymous environment
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Cannabis Seeds, Clones & Strains

Find out which strains are trending, how to take clones and even order discounted seeds from one of our valued sponsors
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Cultivation Scientific Data

Technical articles and discussions for scientists and academics wanting to research the science behind cultivating cannabis sativa
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Medical Marijuana Medical grade cannabis oil extracts are used in many ways to treat a wide range of conditions - 420 Magazine's guide to medical marijuana

Strain Reviews

A review of cannabis strains known for their specific medical benefits as reviewed by both growers and medicinal users
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Prescriptions & Doctors

Public forum discussing availability, recommendations and experiences of doctors prescribing medicinal marijuana
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Methods of Medication

Medical marijuana tinctures, oils, edibles, topical applications and other methods of medication and their merits discussed by patients
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Marijuana Dispensaries

Feedback and reports from dispensary customers bringing you the good, the not-so good experiences buying licensed weed
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Marijuana For Pets

Yes! Members share how their four-legged friends have benefited by treatment with low doses of CBD/THC for cats and dogs
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MMJ Lounge

Articles and further discussion and information - non-specific questions and chat relating to medical marijuana in general - meet other patients and share your experiences
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Medical Marijuana Scientific Data

Archive of scientific data and studies concerning cannabinoids and other scientifically proven facts about marijuana and its use as a medicine
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Cannabis Concentrates Learn how to extract, isolate and enjoy terpenes and cannabinoids for aroma, taste and effect

Cannabis Oil

Making, using and the benefits of Rick Simpson Oil or RSO and CBD Oil
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Tinctures

Making, consuming and dosing (topical or sublingual) solvent extracts of Cannabis
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Rosin

A more natural, solvent-free cannabinoid extraction process using heat and pressure
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BHO

A collection of techniques for making butane hash oil extractions like budder, wax or crumble and sauce, dabs or dabbing (warning flammable)
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CO2

A high pressure and temperature manipulation of Carbon Dioxide rendering it able to extract cannabinoids in a non sticky form (I.e. shatter)
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Distillates

Ultra pure isolates of individual cannabinoids produced by distillation
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Hash & Kief

Concentrated resinous trichome glands containing THC
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420 Legal Action Discussing activism and legal matters with 420 members all seeking the same freedom to possess and cultivate a plant for medicine

Legal Discussions

Queries and useful information regarding the legalities of getting arrested and what to do if the cops bust down your door and violate your rights
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420 Politics

Free for all discussions on the world of politics surrounding medical and recreational cannabis - keep it friendly while letting your voice be heard
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420 Activist Corner

Got passion for the cause? Find out what others have been doing to spread the word and what you can do to get involved in the mission today
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Petitions & Initiatives

Find and share initiatives - get support in your community by signing up for petitions and showing your support for the crusade to legalize cannabis
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420 Lounge Light one up and relax in this laid back lounge for fellow cannabis lovers to meet new friends and chat about the 420 lifestyle

General 420 Talk

An easy going lounge for discussions about general cannabis related topics - what's on your mind today?
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420 Glass

Photos and discussions about pipes, bongs and other glass smoking utensils - show off your favorite smoking apparatus
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420 Contests

Win cool 420 Magazine merchandise and prizes from our sponsors by entering one of our regular monthly contests
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420 Drug Testing

Discuss the process of drug testing and how to prepare for it - ask for help, offer guidance or share general knowledge for future testers
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420 Calendar of Events

Find or post info about upcoming industry events and other notable dates of interest for fellow cannabis enthusiasts
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420 Artists

A meeting place for cannabis related artists from around the world - show off your creative works or simply come enjoy the beauty
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420 Pictures

A gallery of fun and interesting photos that include a 420 somewhere in the photograph - do you have a creative 420 photo to share?
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420 Stories and Creative Expression

420 Stories and Creative Expression: Cannabis inspired stories, anecdotes and curious thoughts - spark one up, let the creative juices flow and express yourself here
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420 Birthdays

Celebrate your fellow 420 Magazine members by wishing them a Happy Birthday and light one up in their honor
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420 People Join the collective mission of international activists fighting for cannabis rights from courtrooms & televisions to farms & concert venues

Cannabis Warriors

Pioneer to present day activists all campaigning for marijuana rights by creating awareness visually verbally and musically
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Celebrity Tokers

Big names who are public proponents of marijuana - from famous actors athletes and philosophers to musicians models and social network stars
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420 Girls

Celebrating female activists and women entrepreneurs in their campaign to repeal cannabis prohibition and legalize marijuana at the federal level
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420 Bands

Musicians poets and bands who promote our collective mission for freedom at their live events and online social networking channels
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420 Religion

Explore different cultures where marijuana has been used for sacrament and meditation - you'll be surprised to learn where the history takes you
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Fallen Warriors

420 activists and enthusiasts who promoted cannabis awareness - some even dedicated their entire lives to the collective mission to legalize
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Victims of the War on Marijuana

Stories of the unjust victimization of cannabis and medical marijuana users - from arrests and raids to robberies and death
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420 News Read and digest the latest cannabis industry news & updates disseminated by passionate volunteer member news hawks at 420 Magazine

Medical Marijuana News

All the latest headlines for medical marijuana patients like legal status updates in your area and how cannabis helps ease a plethora of ailments
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International Cannabis News

General cannabis news stories and articles about marijuana events from all over the world - engage with 420 members in discussions about each topic
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420 Magazine Articles

A selection of featured articles written by 420 Magazine journalists from celebrating pot pioneers to what is 420 and who started it?
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420 Press Releases

Archive of public industry announcements and updates about new companies and organizations created to further cannabis research and the marijuana movement
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Industrial Hemp Hemp has been a useful crop for centuries, now the industry is finding new ways to utilize it from shoes to houses - could hemp help save the planet?

Hemp News

What's going on in the world of hemp? Here you will find all the latest in hemp industry news and gossip to help keep you informed
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Hemp Facts & Information

This forum is filled with hemp related history and scientific data - digest and discuss ideas on how hemp can literally change the world
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Hemp Health & Nutrition

Healing and nutritive properties of hemp including tips on what to look for and how can hemp can benefit your health and wellness
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Jack Herer Memorial

A touching pictorial of the cannabis industry laying to rest the man and legend who once passionately led the movement to legalize hemp and marijuana
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420 International Hiya - Hello - Ola - Bonjour - Nǐ hǎo - Hujambo - G'day - Marhaba Friends from all over the world are welcome here so come on in and join us!

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420 Resources Here you will find feedback, information and guidance for the 420 forum and website - plus volunteer job opportunities and how to join our mission

Website Help & Feedback

Questions and answers to all your inquiries about using and navigating our website - get support and assistance from our staff and community
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Human Resources

Job opportunities on the 420 Magazine staff - volunteer to join our mission and use your passion and talents to assist our busy team
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Latest profile posts

DedosVerdes wrote on MagodeOZ's profile.
Welcome to the Forum!
plan500 wrote on Emilya Green's profile.
Hi Emylia,

Hope you remember me from my post some weeks ago:

Stunted growth - a repeating problem I can not solve

While I am grateful for the watering advice you gave me (game changer), I did run into other issues down the road and am currently in a desperate situation once again.

With the right watering method, light intensity, VPD and C02 and other concerns out of the way, there is one last issue I can’t resolve – feeding and media EC monitoring.

Those last plants from the post that looked amazing after the correction in watering, eventually got badly burned in week 4 of flowering.

A total of 4 waterings starting week 1 of flower with around 500ppm (1.5L each) is all that took to almost kill them.

I guess I did not take into consideration that by increasing the amount of water from 0.5L to 1.5L per watering I am also increasing the total amount of nutrients, regardless of ppm concentration. By the end of week 4 lower leaves stated to yellow and by the time I made a runoff test I realized the media was already over 1800ppm and they were frying. I did flush them but the damage was done. Perhaps there were also netes left from veg.

My conclusion is that I need a method of knowing the EC in the media prior to every watering in order to ensure that I am not overfeeding. Does this make sense? I used to rely on set feeding schedule that I’ve adjusted (trial and error) in time but realized every batch runs differently and that can’t work without actual knowledge of the media EC.

As I started to make runoff tests for EC I stumbled upon a new issue I was not aware of. The Plagron Lightmix I use seems to have a 1000-1200ppm runoff right out of the bag. So now every time I put seedlings or repot plants into their final container, I need to take this ppm into consideration, which make the whole decision making every more difficult. To add to the problem the Lightmix is pre-fertilized with mineral nutes, while I use Plagron Alga series nutes which are organic.

Usually I don’t adjust the pH of the watering solution, however now that I know there is so much mineral nutes in the media I wonder if I should.

At some point I plan to change the Lightmix with Promix that is not fertilized and recommended for organic grow. But that will take some tests and time so now I have to deal with the Lightmix.

Long story short, how should I approach the media EC monitoring and if runoff test is the solution can you advice of the correct way to do it and what things I should consider. I also bought a Bluelab Pulse meter, so far it gives rather close readings to the runoff.


P.S I was wondering if there is any way I could contact you privately and share with you a brief document describing my process and principles. It’s a simple table that includes all parameters of the process. Hopefully you can spot some issues and give me some general advice. My final goal is to set a fixed production process that works and try to stick with it and not change it. Last couple of years of my life passed into experimentation, theories and guesswork and honestly, I am physically and financially exhausted and don’t know if I can keep going. And yet I feel I am one step away from success.
May be A W O L for a few, feeling terrible not sure why. But I shall return
Ziggy yy wrote on Krissi Carbone's profile.
Hey Krissi, @Joe Brewster recommended i get in contact with you. I have 2 Mars hydro ts3000 and I am growing my first auto seedlings (5 of them). I was wondering what would you recommend for the best ppfd? I have been going off mars hydros recommended for seedlings of 100 to 200 ppfd but 2 of them are doing amazing big beautiful ladies and the other 3 are struggling a little (they look great in pictures but 3 are significantly smaller then the other 2) My ppfd is ranging from 128 to 160 but all the plants have different ppfd the light is level and about 20 inches away from them right now I believe. Joe says you are always testing lights and what not so maybe you'd have a better recommended ppfd for seedling 🙃 thanks in advance 🙃
Good morning Hippies, here we are getting ready for a snowstorm (NOT) looks like rain, more freaking rain, it's December and we have no snow, I'm well experienced in life and I haven't seen a lot of snow, I think it has been 2 maybe 3 years since the great snow hit Murfreesboro, Tennessee. Don't get me started on their cannabis laws. I could just burn the pages up (figure a speech for the press) Snoooooow, snoooow, snoooow! Smoke'm if you got'em!
I've been a grower for a few years now and stil) make mistakes and learn talking with everyone on 420 Mag is very helpful and informative. Good to hear what's going on with other growers. Thanks
Have a couple of people Interested in my 98 jeep, it might be an OK Christmas if I can sell her
erieflwr wrote on PeeJay's profile.
You still alive and well? 🤗 from an old BUDdy
Pinch wrote on 420Josh's profile.
The last one I puffed is the best!
It's a bright sunshiney day, hope your day is as bright
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