but dont you think the loss of stones is affecting your oxygen levels because the air isnt getting broken up into tiny bubbles?
any feedback on last pics? is it ok for a root to look like tht???
The pics of roots looked a lot healthier. Nice and white, and bulkier.
I did not want to comment on previous pictures, which looked sick and wimpy.
this is my first dwc and i felt the same way. they looked sick af. they are in flower now but the tub wont get switched with new nutes till next week.
so do you think i will be okay even though one root got rot.
but dont you think the loss of stones is affecting your oxygen levels because the air isnt getting broken up into tiny bubbles?
OK, as promised, I will explain why you don't need air stones.
First, the waterfall effect will give you the highest dissolved O2 concentration possible, but that's not my point. That's just a simple fact.
As for the air stones, it's about volume and surface area. You can put all the pumps and stones you like, but there is a maximum amount of dissolved O2 you can achieve via this method. That is fact.
Big bubbles, little bubbles, it doesn't matter. It's about surface area. Bigger bubbles, or smaller via air stone. Lotsa little bubbles have no more surface area that fewer big bubbles at the same volume. Since there is a max amount of dissolved O2 achievable via bubbles, size doesn't matter. As long as you have sufficient volume, air stones are just a waste.
I tried side by side using the same strain and there was not a measurable difference. The open line performed just as well.
Bigger bubbles move the water, causing more contact with both the bubbles and the atmosphere. And as I said, there is a max amount of dissolved O2 you can achieve with bubbles, and you can achieve that max with no stones.
The only way to get a higher dissolved O2 content is the waterfall effect. And the waterfall effect uses no air pump, it just increases the amount of surface contact with the atmosphere...
When you don't want to pay for additional airpumps, stones will increase the effectiveness of each pump. As I stated before, there are multiple studies by universities and other organizations detailing how much more effective stones are over open lines.OK, as promised, I will explain why you don't need air stones.
Links please?When you don't want to pay for additional airpumps, stones will increase the effectiveness of each pump. As I stated before, there are multiple studies by universities and other organizations detailing how much more effective stones are over open lines.
Not on a budget? Open lines are peachy.
Links please?
on a side note how long do plants need 12/12 until they are officially out of veg
second grow indoors. and thank you i dont need rdwc tips lol. just dwc tips and expert eyes on my roots. not trying to loose 3/5 of my harvest cause my dwc tote gets rotted because i didnt know i was fucking up. and i meant how long until growth tips become covered in hairs.Sticking to the point, telling someone who is on their first indoor grow to recirculate their water isn't a very sound piece of advice, imo. OP asked for dwc tips, not door-to-door rdwc evangelism. Not to sound like a dick, but life is surprisingly short, and I have already wasted a good portion of mine with rdwc, and I'm a pretty f'n methodical dude.
What exactly do you mean by "out of veg"? The 8-12 week count begins the day you flip your lights.