420 Magazine Background


  1. H

    Water Quality

    Good morning to you fine people. A question...... I'm using still mineral water on my plants - the breakdown of minerals is as follows: Typical Values per litre - Calcium 11.0mg - Magnesium 3.5mg - Potassium 2.5mg - Sodium 10.0mg - Bicarbonate 25.0mg - Sulphate 11.0mg -...
  2. NorCAKnowYourGrow

    Nutrient burn or heat or overwatering?

    I'm guessing nutrient burn....but maybe this is heat. Was hot as hell most of this week... I've had more of these leaves this week than ever. Fed them last week Friday and then again today. So maybe too many nutrients? 98% of each of the plants look amazing with an occasional fan leaf that...
  3. Water Level vs EC vs pH - and what it means.jpg

    Water Level vs EC vs pH - and what it means.jpg

    Very useful chart for those who grow using hydroponic methods.
  4. Optimus913

    Lonely Afghan Kush

  5. niighaag

    Beginner Grower: New Active User On Forum

    Hello y'all! First off I want to say that this seems like a great forum, and i've been viewing it for alot of time without registrated. Here's a little introduction of my life, sit back and enjoy the show. To begin with I've always had a sweet tooth for growing (all kinds of stuff) , ever...
  6. Inflatable Pool Chair.jpg

    Inflatable Pool Chair.jpg

  7. Lovely water drop shot of my Optic 4

    Lovely water drop shot of my Optic 4

  8. Bluenoser

    First Aeroponics setup build - Need opinions

    Hello all, This is my first aeroponics setup I just built, loosely based upon some designs I saw on youtube. I'm wondering if you might look at it and let me know if you see any obvious design flaws. This is just an experimental one meant to grow 15 lettuce plants in net pots, not for big weed...
  9. Justones

    Germination - Soaking in water first

    So I normally just soak & germinate seeds in wet paper towel. But being I had to buy some I'm taking extra measure to make sure it works. I read to soak in water for 24 hours first. Then use moist paper towel or put in jiffy pellet (peat moss). My question is, is the seed supposed to sink...
  10. M

    Slight leave curling

    Hi first time poster here my week old white widow ladies i have noticed slight curling of the leaves i believe it's ph related. I am feeding 2 day rested tap water with a ph of 6.5 in biobiz light mix soil under leds.any ideas guys thanks
  11. gr0w

    Watering coco

    hey guys, I decided to switch to 5 Gallon Fabric pots for this grow and just looking for some info on the best way to water them. the plan is to water them with fresh PH water every other nutrient feeding to wash out and give fresh nutrients every feeding cycle. I am using 5 gallon fabric...
  12. Stunned


    As someone who is constantly making up batches of solution for my drain to waste system, Iv had some different experiences trying to figure out the most effective way to keep my water needs in check. I prefer using Distilled or RO water and at first was picking up the 1 gallon plastic jugs from...
  13. BlazingWelder

    Kong is turning black

    I have a Kong, not king kong, just kong, clone growing. Purchased about 20 days ago from dispensary, was the healthiest of the bunch, and was roughly 3 inches tall. I transplanted into some fox farm ocean Forrest after 2 days in the little cup it was in, into a peat pot, and when transplanting...
  14. 4

    Possible Nanner - What do you think?

    Title kind of says it all; this is 5 weeks after flip to 12/12 on a feminized Durban Poison. I'm about halfway to the suggested flowering time. I actually found a couple of similar looking things and plucked them out, but this one I just cut and put into water in a different room to see what...
  15. A

    Well water making your plants sick

    You got the best equipment temp humidity air flow just right, PH water temp on the money, most expensive lights you can get. You might've tried RO water. But as soon as you push the ppm pass 400+ this happens Its not your fault its the well water. My system RDWC Chiller Combo leds and...
  16. M

    Leaves Curling Up - Taco

    Hello From Holland! Strain: CBD Kush (indica dominant) 1 Plant, indoor, small cabinet Led 280Watts at 40cm above plant temp daytime: 24 degrees temp night: 18-19 degrees Medium: Soil (canna bio plus) Airpot 11 liters Water: I use a tensiometer and keep it between 80 and 120 mbar Nutrients: did...
  17. M

    Coco Loco

    How do you water? everyday? 6.2ph?
  18. M

    Would this be considered heat stress?

    Hey everyone, greets from Chile, first post but long time reader :) Was wondering if anyone could tell me why my plant has presented this pathology. I use Janeco Light Mix, with BioBizz products, using a dosage recommended by them, water them every day, with a pattern of fertilizer 2...
  19. Bud052

    First Grow Hydro LED

    Here is the info: What strain is it? 4 Plants (will I have room in a 4x4 tent?) Acorn, also known as “Akorn” or “Snowbud,” Indoor grow Outsunny 4x4x6.5 grow tent MARSII 1200W LED for Veg and Bloom Hydro grow with Expanded clay pellets soaked in PH water for 24hrs before placing in the 2 gallon...
  20. 4

    Water temps and PPM questions in DWC grow

    Im starting my first grow in both Coco and DWC Due to my research water temp should be kept around 20C, 60-65F I live in an area now temp around 5-15C, 41-59F So the water will get really cold during the dark I suppose? it's that gonna be a problem? Another question According to my...
Top Bottom