Peter Grant
 

  • Benito Sanchez says:

    Here in Southern USA I find that a grass that grows along bayou waterbanks and also on ditches and waterways are a great sub for this. It forms a tangle of very dense roots. However, they are very hard to cut so I have to use shears. A slab cardboard or paper cutter (With gullotine blade) would be just right to cut dead roots into slabs…

  • M.B. Boyack says:

    I love your ‘No.8 Wire’ style of thinking my Aussie cousin. As long as there is minimal to no compression/compaction of the ‘rock wool’ when cutting them, there should be no problem with this method. I agree, you are negating the whole purpose of having individual ‘rock wool’ blocks by having them packed together so close to each other in the grow containers.

  • The Koala Racer says:

    When leaving the seedlings in the rock wool, for the bottom up feeding do you just leave water in the tray? Or is it water with nutrients? Aaaand do you feed regularly or just the once? So many questions 😃. I’m new to all this and 3D printing a a system as I write this

    • Hoocho says:

      Feed by adding water (and hydroponic nutrients) from below incrementally stepping up nutrients as the plants mature.
      (Seed nutrient lasts a long time)

  • Duerme ahora says:

    Thank you: For me the prices of the things are always an obstacle and you are a big help (with a pleasant voice.)

  • Mark H says:

    In the US, I use the “Big Mama” rockwool cube, which is 8x8x8. It cost under $6 each at my local hydroponics store, which I can cut into 512 one-inch cubes. So the cost is about a penny each. I can cut it even smaller depending on the seed size, making it even cheaper. You use the same on the previous video and a clip in this video.

    • Joshua Van der vort says:

      Do they have a website. I’m in Atlanta

    • Mark H says:

      @Joshua Van der vort Unfortunately, I am in Los Angeles and they only have two local locations. Too bad Amazon has it for 3x higher.

    • Alan Morgan says:

      @Joshua Van der vort have you checked Growtopia Hydroponics in Buford? They have the Grodan slabs, 8x3x36 for 15.95. You could cut that into 864 1 inch cubes and be about $0.02 each.

    • pistolschlapper says:

      I use a 6x6x6 Hugo. Did not know there was an 8″. you must be growing serious trees!

    • Mark H says:

      @pistolschlapper I actually cut into about one inch (25mm) size and use it to start seeds. Saves tons of $$, about 20x less. I think the Big Mama is the biggest out there.

  • Maori Truth Seeker says:

    Once again Hoocho! Informative, innovative , educational and so much more. Hands down the best channel for hydroponics in AU and possibly mother Earth. Not only do you give us product reviews and sources, methods and insight, you also convey in an honest, enlightening, conclusive way, with simplicity. Well done Sir!

  • Lallie here! says:

    Awesome vid as usual. Super happy to hear about the Patreon! MORE HOOCHO IS ALWAYS A GOOD THING

  • Jack Thorley says:

    Another great video! I’ve been doing a very similar process but within net pots using a smaller amount of Rockwool suspended in clay pebbles, works very successfully and has a little more reusability of resources.

    I’ve recently designed a 3D printed seed “pelletizer” which allows me to create a perlite/coco mix to suspend/sandwich the seed instead of Rockwool and it’s working great so far – germination in 2 (cold) days and 100% germination. I originally tried 100% coco/peat but found, like you, the germination rate was poor – definitely linked to oxygenation or oversaturation of water. Happy to share some information if you’d like.

  • goldfish 5252 says:

    Just a question, do you think using white foam a more economic substrate for propagation?

  • Hal Lunsford says:

    Great information on hydroponics. I want to start, but still concerned on United States suppliers. I have worked in college to make extra money years ago (over 40 years ago). I am determined to get myself into hydroponics in my retirement years. Thanks for the super presentations too!

  • DanDannyDanielleBob says:

    Curious to know what you do with the coco perlite mix post harvest. Is it a spent consumable or can you reuse it? Does it need to be sanitized in some way? Or maybe just composted and end life in the soil patch, creating a throughput consumable…

  • Nigel Hughes says:

    Love your videosate, very informative. Question RE:rockwool vs coir. The coir pellets can be composted I presume after use. Are the Rockwood cubes just landfill after use? I.E: they’ve got no organic matter and can’t be composted?

  • Marcellus74 says:

    Hi, thanks for the details and all your vids. During the time lapse, do you add water or anything or does the lid make it a fully closed system? BTW, is it water or nutrient that you use to make the seeds germ?

  • Sam Lentini says:

    Hi, I enjoyed watching your video. I first saw it a year ago and recently watched it again as a refresher course for my rock wool seedling establishment. I’m in Melbourne and nights are still under 10 degrees. I have a heated greenhouse with grow lights but am concerned that it might be still too cold out there. I do have the option of growing inside the house with grow lights. Where do you suggest I start growing my summer vegetables?

  • Benzles says:

    I love the old peat pellet hoocho. But I dont use humidity domes with them. That made a HUGE diff. Or run the dome with the vents wide open from day 3 or 4 onwards.

  • SnifterRoux says:

    What EC levels are you using to get those seedlings?

  • Charlies Place In The World says:

    Thank you! Thank you! Thank you! These videos are so informative and you’ve even provided useful sources in the US. Thanks again!👍

  • Colleen aka Leeann Rogers says:

    First time watching your show, great info. As a first-time Rockwool user, I bought my first set of cubes from Amazon, what a mistake, I opened the bag and had my scissors ready to cut and separate, but the first few fell apart, literally crumpled in my hand. Out of a set of 28 cubes, I probably got 6 good ones! So I’m ordering from the link you placed at the bottom.

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