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Rockwool - Seedlings and cuttings - Need advice pls.

Scrogerman

Active member
Veteran
Thanks Scrogerman! I'll definitely give rockwool another shot, it gave me 100% success rate so far. Just gotta get used to it's downfalls I guess. And yeah my tapwater is gross! I've been mixing it 50/50 with store bought water, and recently picked up a screw on Brita "tapfilter" that will have to do until I move. Once I'm in a more permanent location I'll definitely look into setting up an RO unit.

I soaked my seeds in shotglasses for 12-18 hours before moving them into the rockwool starter cubes, 12-18 hours later I saw the taproots poking through the seeds. It took another day for the bravest seedlings to poke their heads above the rockwool, and a day after that for the slower ones. Sounds like I was right on track with the results you get! Beginner's luck I suppose! I was afraid I was playing with them too much and might've damaged 1 or 2 but all are still alive and well. I don't have a heating pad but I kept them in a cupboard above my stove, and with the stove light on it was nice and cozy in the small cupboard.

In a perfect world I'd have mother plants started and grown in soil, and just veg/flower out the cuttings in the rockwool/DWC. Thanks again Scroger!

Hey Bro!
No probs! One of the main things with propagating in RW is warmth & RH requirments, its difficult to keep a constant environment(temp & RH) without the use of either a heating mat or a heated propagator. so to pull it off without these tools is quite some feat imo. You can get a heating mat & standard plastic propagator for less than £25, really takes all the hassle out of starting in RW. The other important thing is to use a starter/prop nutrient like 'Formulex' or one of the other 'Start' nute products, but ive found Ionic to be king when it comes to starting seeds & clones. It was a good idea to persevere with RW, once you get it sussed out, its simple to work with. I periodically flush RW every 2 weeks, all the maintainance thats needed.
Good Luck with your grows man. ;)
 

hippydan

Member
Hey Bro!
No probs! One of the main things with propagating in RW is warmth & RH requirments, its difficult to keep a constant environment(temp & RH) without the use of either a heating mat or a heated propagator. so to pull it off without these tools is quite some feat imo. You can get a heating mat & standard plastic propagator for less than £25, really takes all the hassle out of starting in RW. The other important thing is to use a starter/prop nutrient like 'Formulex' or one of the other 'Start' nute products, but ive found Ionic to be king when it comes to starting seeds & clones. It was a good idea to persevere with RW, once you get it sussed out, its simple to work with. I periodically flush RW every 2 weeks, all the maintainance thats needed.
Good Luck with your grows man. ;)

Thank you for the support! Indeed I was afraid of temps and RH, so I put them in a warm cupboard and covered with 2L soda bottle cut in half as a ghetto dome. RH here is 20% on a good day :/ Stay safe!
 

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