Rockwool Hydroponics Propagation and Transplanting Complete Guide 

Highest information density of all hydroponic videos so far.

Probably one of the best starter videos I have seen. Well done and thanks for creating it.

Back to watch this for a fifth time to see what new details I pick up this time. Thanks for all the great content, Everest !

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

Super like this Video. Much Information with easy understanding and time saving. without music make me more serious watching it. Well Done

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

as a care giver i find videos you do very on point tyvm keep it up

Great detail. Loved it.

Damn man, I learn so much from you and I'm laughing at how wrong I was doing it.

very interesting I use rockwool cubes for years to do my cuts

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

the best ever video for beginners full of information. thanks you too much

I've watched this video 3 times now, today was my first seedly hatching. #CanadianCBD for that factory life

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.

Great video! Best I’ve seen explaining rock wool. Thanks!

+ 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: grodan101.com/sites/default/files/leaflets/MSDS-US-09012014.pdf

I am happy coz I can transfer them to soil . Thanks for this great video

That was great video as I'm about to use someRockwool for first time. Cheers

Good content and you cover it at a good pace, thanks for the upload.

Awesome video Everest, really enjoyed that and I know our customers will too! Keep up the great work =)

You rock bro thanks for keeping it simple

Hey Everest! quick question, how do you feed your seedlings, do you spray? and how often do you feed?

A great help! Thank you so much for your expertise! 👍 ❤️

I miss you man. You taught me a lot

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!

Yes.... Lettuce.. exactly what I was looking for.

Great video!

Im relaxed about it now . Thanks Everest send me the brand of coffee you use

Great video full of detail

Awesome info, great video vibes

Well done I'm down with rock wool now

Just starting my hydroponics systems and you videos are a great help! Quick question. I'm starting my basil in the Rockwool starter plugs and then when the plant is ready to transfer, move the entire starter plug into a net cup with clay balls. Is that workable procedure?

Really good info, thank you!

very informative; I love the rockw!

It appears im bingewatching your whole existence now

Awesome video!

Thank you for this awesome video. I learn so much from them all

Well done boys!!!

Really amazing💐

Very informative.

good info on preventing algae

thank you

How do you feel about the safety of rock wool? I'm starting seeds in 2 oz plastic cups and coco coir these days.

+Everest Fernandez Is rockwool still your favorite? Thanks for all your great vidoes!

Very informative video...

I and an old soil grower. I tried 1 time to germinate in Rockwool lost all six plants I think there was to much water in blocks don't know but definitely made me stay away from Rockwool. If you have any suggestions I am willing to listen. And yes I followed step by step for preparing Rockwool. I am used to 90% Success and will Rockwool I had 100% failure.

Nice video.

What advantages do these huge rockwool cubes offer over the regular 1" cubes?

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

Thanks! What is the frequency that you add nutrient solution to the rockwool and frequency that you water the rockwool? And how do you know that its time to do so? Any signs??

I have a couple interesting questions. Can a 6x6x6 rockwool cube be used for outdoor growing? And I also thought, how fast would it dry out in summer time dry heat say in the 100's? I was wanting to hand water all through the grow. And I thought about buying or building a square wooden pot for it to sit in. Thanks

I have romaine, kale, arugula and some varieties of lettuce starting from seed in Rockwool. Everything went great but now the roots aren't continuing to stretch out once I move the cubes into my DWC system. I started the cubes in a humidity dome and once they had a second set of leaves i slowly started introducing them to less humidity by removing the dome lid. Once they seemed happy I put them in my system. I put a few into mason jars to experiment with the Kratky technique and those roots have reached down and are doing great. The cubes i put into my DWC system aren't doing anything. Any ideas?

thanks for sharing

I’m curious if you have ever noticed a sulfur smell coming from new Rockwool slabs? I have the same grow blocks you have which don’t smell at all, but the flora flex slabs I ordered smell rotten. Thanks. I enjoy your videos.

Hi reviewSearchs. Can rockwool be re-used? That's a great question! Thanks for asking. Some commercial growers enjoy many successive crops from rockwool slabs by steaming them after the plants have been removed and then replanting. Smaller growers can also do this - a few slabs can be heat treated by pouring hot water through them. Solarization is also possible, as is using chemical disinfectants, although care should be taken to rinse the rockwool well with plenty of water after using these. Commercial Grodan users have the option of the Grodan recycling service, which picks up the used slabs and recycles them into new product. However, smaller growers with just a few slabs of used rockwool can recycle the material by shredding it and reusing it as a growing media, as a component of potting mixes, or by incorporating it into outside soils and gardens.

Thank you. I had to sacrifice a plant to figure out what was happening to my plants thst started in a cube and they they were slowly dying after planting in soil. 1) overwater at the beginning 2) too big a pot 3) the cube dried the soil still wet. It was horrible not understanding the transition process before hand. Thank you

My God man you did a fast video that was easy to take in most of your pesentation

Is it okay to place the AOK blocks directly on the slab with a sprinkler system to prevent from drying out? If there are any roots on the sides exposed, would the plant die?

Also when making a soil mix I have pots with a reservoir at the bottom since I don't have the space for a hydro system. How best to stack the clay balls and coco I have?

Excellent

Awesome videos.

I learn alot from you ,thanks you are a good person very smart and you kno your maths ,love coming jamaica

rock wool not only for industry, but also for agriculture

This was incredibly helpful! Thanks for the tutorial! Will rockwool work for any plants? I am training to grow perennial flowers from seed and hoping rockwool can provide a medium that will minimize seedling whilt and just be less of a mess.

What causes mold inside the very center of my dense sticky stinky fruit if my humidity is 45 percent with temps around 80 with c02 in high ppm? In Rockwool 1 inch inserted into a 4inch cube placed on top of a 6inch rockwool cube. Could over watering be the issue. Watering 4 times daily

Can you remove the rockwool before putting in soil somehow? Does the rockwool break down over time?

Are these blocks reasonably reusable for shorter lifespan crops, or would that be an argument for going with the small blocks version of rockwool? If you have a review on Root Riot plugs, could you link us to that? I've been using those with expanded clay so far but I hear great things about rockwool so I want to make sure I fully understand both.

Thank you for all your video please can you add a link for all the items that you have used where can you buy it

Nice video. I'm correctly living in Jamaica. The problem here is I can't use lights, too expensive. Also, the temperature here is really high. 29-32 C year-round. Which is higher than the temperature you have mentioned in the video. What should I do? Also, I'm thinking of take the rockwool to the hydroponic fast. Any ideas? I'm planning to grow salad and herbs. Thanks

Clear explanation

I have a question. Rockwool used for planting contains humectant. Does this product not have to be rehydrated in the next plantings? Doesn't it deteriorate and lose its ability to retain water?

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

very nice

good info!

The rockwool medium seems awfully expensive on a per plant basis of about $10 total. What are your main deciding factors in choosing rockwool cubes over, say, clay pebbles that are cheaper and reusable? For a lower priced crop rockwool wouldn't let you hit breakeven.

Thanks

If using a dutch/bato bucket with perlite, do you size up to the 3-inch block or put the 1.5 inche cube in the bucket?

How many times per day and how much water should I use to watering Hugo rockwool in veg and flowering ? I am planing 16 plants per meter ( Orange Diesel ) 3 weeks veg and 10 weeks grow. Can you advice +Everest ?

Is this rock wool the same completely as that used in insulation of buildings ?

Duuuuuuuudeeee. Amazing info!

do you have the video with the grown vegetables using that method?

rewatching your videos many times sir and from what and many can tell you understend alot can you tell me if after growing some domatos can i reseed them to soil with the rockwool it self ? and are those flora duo fertilizers working on soil ?

New subscriber - thank you! Wondering - I have a large amount of Roxul rockwool insulation from a constuction project. Is there any reason I can't repupose this material in place of these pre-shaped cubes?

thanks

Does anyone know, can you or have you grown outdoor with the big rock wool cube instead of soil?

Is it dangerous to work with rockwool primarily, like breathing it in or something else damaging?

Everest, got any tips for growing a dwarf fig tree in a small, dark, apartment? Can it be in a permanent hydroponic tub?

Everest, i heared that pH can be unstable in those big cubes. What do you think? Did you have such problems?

Ist this medium can blast in future? How many month the medium can be used

I have been having some real trouble with rockwool. The plants sprout, but never made their way to the surface. Any idea why or how to fix that?

Can I use the big mama have to grow a citrus tree? I don’t plan on letting it get any larger than 5 feet tall.

Hey everest, now that you live in France, which hydrostore do you use? Since it seems hard to find hyper fans etc on mainland Europe/ LEC lights

I would pre charge rock cube with at least half strength feed

does this steps apply to aquaponics setup?

This is so awesome. I'm having this burning desire to create a garden at my home. Is there any resource you recommend to learn about plants and their specific treatment?

Cant I start with the little stone thing and put in then in earth? I need help. Or can I only use stone if I use only stone

Rockwool is my favorite way to start seeds, I don't turn the lights on until the first plants pop up

hi there, I would like to know where did you buy your lab equipment?

So can I just buy the big blocks of rockwool from lowes and cut them up? I don't see any local vendors carrying these precut products

What brand is the grow tray/table you’re using?