Added by on 2016-05-05

Seven minutes—packed with info! We take a look at Grodan A-OK starter plugs (stonewool cubes), Grodan Delta 3-inch and 4-inch rockwool blocks, Hugo 6-inch blocks, Big Mamma 8-inch blocks, Unislabs and loose fill rockwool growing media. We cover pre-soaking rockwool, adjusting pH, charging up with hydroponic nutrients, hardening off seedlings and cuttings, and transplanting into soil and soilless media such as coco coir. Video Rating: / 5 Related PostsHow to start growing hydroponics from seeds with rockwool cubesCOMPLETE HYDROPONICS PROPAGATION KITTransplanting Clones into Rockwool Cubes | How to grow hydroponic weed | Grow MarijuanaHow to Hydroponics: Easy Cilantro / Coriander Complete Guide from Germination to Harvest.3 Amazing Ways to Grow with Hydroponic Systems – The Complete GuideHow to Grow Weed Hydroponically COMPLETE Guide

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  • unknown cuyler 1 year ago

    Im soo tired of these videos claiming to explain everything. but they all just say plug your pump into a timer and let it go…
    you kind of missed a HUGE step. you gotta program the timer. NOBODY is explaining how long these timers should be on or off. if i just plug into a timer and not set the timer then why use the timer? its just on all the time.

  • Clifford Thiemer 1 year ago

    Good stuff on all your videos! I'm like a grodan soakin it up.

  • kenbirzneck 1 year ago

    thank you

  • Ben Swallow 1 year ago

    Hey great video, I am starting a deep water culture system, and I have my lettuce in rockwool. They are doing fine, but I was just wondering if you had any tips for when i finally transplant them into the deep water system, i.e, how close to the water should the rockwool be? I plan on having the rockwool resting on some hydrotone inside some net pots, but I am not sure how the moisture is going to reach the roots when they appear. Any input is greatly appreciated!

  • kenbirzneck 1 year ago

    no light for mj germ

  • fanorama1 1 year ago

    Thanks! I was wondering if I could transplant my cubes into soil and you answered my question. Good thing coz I already did. lol

  • db alan 1 year ago

    You rock bro thanks for keeping it simple

  • boognish4life 1 year ago

    Everest, your videos are my go-to for lots of projects i do. Love it!!!
    I am starting tons of basil seeds in rockwool today. Thanks for the videos!

  • Minh Tran quang 1 year ago

    how many time aday i have to feed them ?? ( circulation)

  • Rick Marshall 1 year ago

    Great information on starting plants in hyrdoponic systems. I appreciate the video. I am just getting started.

  • James Henderson 1 year ago

    what kind of nutrients should I use? Im a noob and dont know what you mean when you say 1 mil of each part per gallon… do I just grab a random nutrient bottle from home depot and mix one mil into 1 gallon? idk sorry and whats EC?

  • 1 year ago

    Here you are showing your seeds, from day 1 to go under a light? I thought we are supposed to keep them in the dark?

  • Angie Swyers 1 year ago

    Very nice video, Can you take the rockwell 1×1 block and take them straight to a hydroponic pot filled with perlite . This will be my first year doing the hydroponics. I built a 1,000 sq foot greenhouse with heat for the winter.. Thank you for any advice

  • Everest Fernandez (Just4Growers) 1 year ago

    + Amy Sidious thanks for your comment. Stonewool is spun from natural rock fibers, it is not fiberglass. The WHO categorizes it as bio-soluble meaning you can even eat and inhale it and the fibers will simply dissolve in your body. However, in its dry form the fibers can irritate the skin so I always spray it before use. Personally I have never experienced ill effects but I have friends who find it a little itchy. After handling, I rinse my hands (I don't scrub) – MSDS can be found here:

  • oscaris1ru12 1 year ago

    Everest thank you for the college level tutorial, rockwool. I had no idea how extensive the rockwool uses are and  the huge variety of sizes of shapes available. I'm happy to be here, thanks again for your presentation.

  • grease monkey 1 year ago

    wow your good on making things simple ty. I'm glad you are taking the time to show people first starting with rockwool. I'm going to keep watch for more

  • Cesar Caoili 1 year ago

    i love the idea of a rockwool for hydroponics but my question is where do you buy the instrument measuring the ph water nutrient for plants also where can i buy the rockwool big mamma 8 inch block, & thanks for sharing,…

  • JT777 1 year ago

    Thank you very much for the explanation, I was hoping that it was the same product but not to worry. Here in Bulgaria hydroponics is a pretty new concept so finding the materials like rock wool, and the chemical hydroponic feeds is near impossible unless you import the products. any way thanks again all the best JT