Added by on 2018-08-05

A short video on why I use rockwool grow cubes for my hydroponic systems, Link for amazon deal for cheap cubes: http://www.amazon.com/gp/product/B0087SJ3U0/ref=as_li_tl?ie=UTF8&camp=1789&creative=9325&creativeASIN=B0087SJ3U0&linkCode=as2&tag=thgrge05-20 Related PostsHow to start growing hydroponics from seeds with rockwool cubesTransplanting Clones into Rockwool Cubes | How to grow hydroponic weed | Grow MarijuanaHydroponic Seed Starting & Simple PVC Grow Light StandHydroponic Seed StartingHow to Grow Medical Marijuana Seed to Harvest E20 Hydroponics in RockwoolStarting Seed for the Hydroponic Greenhouse

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20 Comments

  • selfsufficiency1 1 year ago

    What do you do with the used cubes? Compost them?.thanks for the video

  • Jonathan Blanco 1 year ago

    Can fungus build up ? Unto or in areas of rockwool ?

  • gourav kumar 1 year ago

    We can use coco peit instead of rock wool?

  • patty ferreira 1 year ago

    So, I just watched your video about the hydroponic jars that do not need an air pump anymore! Now that I've seen this one too, and understand the rock wool thing I have a question… Can I do something heavier like tomatoes?

  • John Smith 1 year ago

    Thank. You make sense when some others just make noise.

  • MultiOutdoorman 1 year ago

    Is it possible to make your own cubes from the rockwool sold in DIY / Builders merchant stores … for home insulation ?

  • Yash Sheth 1 year ago

    Can you please suggest other mediums than rockwool and their advantages and disadvantages? thanxs

  • btpuppy2 1 year ago

    Love the time lapse!

  • Happy63funny 1 year ago

    Can you just use the rock wool from the hardware store?
    Also subbed! Thank you!

  • Jeremiah Wilson 1 year ago

    wow. that photo of your window side basil crop looks amazing. very nice.

  • Leandro Valdez 1 year ago

    Great video!

  • TrueChristianDoctirnes WeAreTrueChristians 1 year ago

    does rockwool also get fungus when seed is in seedling stage?

  • sawadikin 1 year ago

    rock wool enemy = green algae.

  • Cannabliss 1 year ago

    Why have you stopped making grow videos? I came upon this video and checked out your channel hoping to see more on how to grow things like lettuce, peppers, etc, since you are called "TheGrowGeek", but it seems you have given up on growing? Just wondering if you have anything "grow-related" planned anytime soon? Thanks.

  • Ruben B. Molina 1 year ago

    Hi! Thanks for posting this video! Two questions/comments:
    1) Have you re-used rockwool for seeding with good results?
    2) have you considered using Coco-coir? do you have any opinions about it?

    Thanks again!

  • Maria Ortiz 1 year ago

    Ebay has 200 for 16$ ! free shipping

  • Leslie Charles 1 year ago

    You are just right about the price of ROCK WOOL.

  • Caroline Honse 1 year ago

    Please do more videos on lighting and nutrients.

  • Caroline Honse 1 year ago

    Do you see any danger with inhaling the dry particles of rockwool? I don't see it as any more dangerous than living in a house built before the 1970's. Nice video. Thanks. I just ordered my first batch of rockwool from Amazon!

  • Peggy Elmhorst 1 year ago

    Do I understand correctly that I wouldn't need to use clay pellets in the pots for growing hydroponically? Would the rockwool continue to hold the plant to maturity and harvest? Thank you for helping me. Peg