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I've had two seedlings growing in rockwool for about 6 days now. I'm wondering when I'm actually supposed to be seeing roots coming through so I can stick em in my hydro system. The water I'm using is naturally around 6 ph. The most I've seen is a tiny bit of the tail of the main root sticking out the bottom of one of them. I soaked the rockwool cubes in the water for about 3 days which I think might have somehow toughened the rockwool a bit. This is also my first time growing so I'm thinking I probably messed something up here or should I just be patient? Thank you all for any help
Quote: mangledwit said: I soaked the rockwool cubes in the water for about 3 days which I think might have somehow toughened the rockwool a bit. This is also my first time growing so I'm thinking I probably messed something up here or should I just be patient? Thank you all for any help
The maximum amount of time rockwool should be watered for is 10 minutes.
When watering only the bottom third of the cube should be submerged any more and you will get root and stem rot.
Young plants need only two watering a day. Older plants can use more but rockwool does need to dry out a little between watering to give the roots the air they need so always leave two hours between watering.
Its very important that rockwool drains completely any standing water will be soaked up by the rockwool and it will stay too wet causing root rot.
Rockwool is like a sponge even it just the corner is sitting in water it will suck it all up.
Even if your using a drip non recovery system with rockwool you still have to make sure your slab is on an angle to ensure it drains completely.
Weed is tough dude there is a good chance you have not done any major damage and the plant should recover. Remember roots need to breath so never leave rockwool sitting in water. Hope this helps best of luck.
Thanks guys. Just had to make sure I hadn't gone wrong since I could find any info on the internet and everything seemed to go so fast in the first couple of days.