outnin
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I completely agree with this assessmentSlim. I would not recommend putting smaller seedlings into the UC but rather growing until larger in a rockwool cube, indepedent of the system.
Don't modify/complicate your system to accomadate the seedlings, but instead create a small preveg area to get them well under way before transplant into the system.
Imo that water level is way too highYou can see these ones air pruned directly in RR for a few days with very rapid growth, fast as can be. The rate is maintained when submerged as the roots don't experience any period of reduced access to air.
Those pruned tips are already exposed to flow and ready to explode into it. I just to move the one that you see here after a few hours and broke off a root that was already a few inches long and branching. The pic here is the same one moved a second time to make room for more after 24h submerged. I'm sure that I broke off more than you're seeing too. No big deal, growth will not be slowed, it already has a very dense root base... but not ball.
Note the root that's branching out from the stem at the very base, flush with the top of the rooter. That is after 1 day of being submerged flush with the water line, as you can see. It is almost as thick as the stem. Growth is not slowed, they are ready for submerging very quickly. This, is, the, right, and best way, to do it. Thank you.
When I pull these up btw, they will take most of the Hydroton with them.
Grow the plants learger in rockwool to no less than 4 sets of true leaves before putting into the UC. Should be as vigous and stable as a strongly rooted cutting.
Man after my seeds crack mine go strait into the the wool and then strait into the buckets. Set the water level 1" above the bottom of the net, and hand feed a 1 cup of water daily. Seed sprouts after a day or so. Roots hit the water within the week usually. Then your off to the races.I usually have roots poking out the bottom of the rockwool by the time they have 2 sets of true leaves. I've been keeping them in a seedling tray and keep a little water in the tray. Not enough that the rockwool is sitting in the water, but enough that the root tips don't dry out. How do you manage yours so that the roots don't dry out until they get the full 4 sets of leaves?
So here's the question... Should I just be using tap water with a little uc roots ( 30 ppm tap on 500 scale)
Or should I give them a light veg nutrient to bump up that to 100ppm?
Also when someone told me about this they said I should bubble the water which makes sense, you prob don't want stagnant water... But the airstone is out off the water a bit, causing less bubbling... I'm using the bar style stone since it's the most flat one I had. Is there a thinner air stone like a wafer?
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