Hydro: Some plants like it, some don't...

[Greyskull]

Dude healthy plants are green plants, not yellowish.
I am no expert... but see/notice how the leaves are yellowing from the bottom up?
That means they are not getting enough NITROGEN. They need N in veg to grow nice and healthy.... to grow properly.
I don't know if that means you need to feed more frequently, or add more nutes (since you're rocking the one part)... I'm just saying it looks to me like you need to get some NITROGEN in there.
A foliar application of N (like Metanaturals, or H&G Magic Green) or 2 should help them get some color back.

unless you like yellow vegging plants.

hope you can get it dialed in and rocking.

good luck

 

[stinkyattic]

Plant in the back LH corner does not show a healthy shape. It appears wilty. In a medium with large interstitial spaces, roots can dry out more easily if the timing is wrong, damaging them and making them less able to uptake food and water- even if your reservoir is correct, the plants can't use it if the roots are unhealthy.
If you want to run a timer, drip it MUCH more often. Personally, I'd put it on constant flow, but I don't know what your drainage under the system is like, if it is enough to handle it, so read that link and get a feel for the concept before you decide.

 

[littlebud]

lower water line or raise rw cube...your medium is to wet and roots wont grow down to the nutrient instead they rot...you dont want the cube wet after roots touch water...peace

come on guys...!?!
No one?
My plants are dying on me here....

 

[littlebud]

well hell i look at page2 and you put them in a different system lol

 

[kenned]

Thanks alot for the link, stinkyattic. It looks like alot of reading and it gonna take a couple of days befor I have the time to read it all.. But allright,I will do as you say.

From tomorrow, the pump will be on, from 8morning, till 10 night. You think they can survive the night without water? The plants are in my bedroom, so it's har to have them turned on 24/7...

I can see they need Nitrogen, but I'm using ghe onepart (pic included)

And because it is a onepart, I thought, that ones I increased the dose, the leaves would turn green again... But that might not be what's going to happen??

Sorry for my bad english..
And thanks alot, I really appreciate it..

kenned

 

[cbf]

How were the seeds rooted too? If the root structure isn't rocking and strong before introduction into a hydro system, some just die while others adapt and THRIVE. I always loose a clone or 2 if I'm rushing the transition periods, or the medium isn't right.
I'd definitely use medium like you've switched to, and keep experimenting, you'll get it right. As long as you use a good cleansing agent, you can bump the nutes higher, you're getting yellowing from lack of nutes if the ph is correct.

You should try coco too, plants love it in hydro, the roots get strong and strong roots = strong plant, even ebb and flow....

ps- your new setup looks better and the plants are ok, but need abump in nutes and try keeping PH around 5.8-6.0, don't exagertae on PH up or PH down as they are kinda strong if too much is used, and cut the super yellow, wilting leaves at the bottom, bump the nutes man, make 'em green again..

 

[stinkyattic]

Kenned, before turning to constant flow, you have to be sure that your drainage can take it and that your medium is correct- I just noticed those big RW blocks under the HT and will get to that later. I think you may have to do more work.. more on that in a sec...

Sorry, I'm not familiar with that nutrient at all. But as for increasing the dose, be very careful- as I was saying, even if the nutes are THERE, if the plant can't USE them then it will seem to you, the grower, that you should add more. But maybe it is a pH issue, or a root issue- so you need to check those things, or you could accidentally hurt the plants more. So set your pH to 5.8 and your ppm to about 800 for now, and get your watering routine sorted out.

One thing I am noticing is that you have those big RW blocks in there- I didn't see them previously- that actually makes running a constant flow system MUCH more difficult; in fact, it makes it hard to run any hydro system when you are mixing your media. See, the HT holds water poorly and needs to be flooded 6x/day or used as a NFT matrix. But the RW holds water well, for long periods, and is suited for a drip feed. Now, If you flooded your system, the HT would dry out WELL before the RW. If you dripped it, the RW would be about right for moisture, but the HT would be very dry. Also why do you still have the paper on the blocks with them buried so deep? If you leave the paper on, you should set the RW blocks MUCH higher up compared to the HT surface.

I don't know how you want to proceed here. Personally, I would remove the paper from the cubes, because it is decreasing oxygenation to the roots. I would also set them up higher. I don't like to run my system in such a way that the starter cube/plug stays constantly mosit; in fact, in my ebb n flow, I makle sure the cubes NEVER get wet once the roots have gotten out the bottom and into the HT substrate.

Your system is going to need more work to work in any configuration. How much have the roots gotten down into the HT?

 

[littlebud]

yes my friend lights out pumps can be off on the homemade waterfarms...and if you ever use coco in the farm it is the very key to success...or big buds anyway...peace

 

[littlebud]

i would also get rapid rooters and hydrotton from now on...no offense but rockwool sucks ass

 

[kenned]

As far as I rembember, the roots were doing alright, when I transplanted them..

I think the fertelizer that I am using, is well used, here in DK..

Unfortunatly, one of my marleys collie is a male, so I used him to experiment on.. Muhaha..
But this is how the roots looked..:

But this was also the plant that did the best, so I wonder if the other roots aren't looking that good..

But to summarize things:
It is not the best idea to keep the water running, because of the size of the RW-blocks. They will be too wet, while the hydroton won't be wet eneough?? (if I would only water 4 times a day)

So if I removed some of the RW, it should be possible to let the water run all day??

thanks for the help..
kenned

 

[stinkyattic]

Right, on the size of the RW blocks making it harder to run an NFT.
Don't try to remove any of the RW. But you SHOULD remove the wrapper on the block so that your roots are better exposed to oxygen between cycles. If you do that, you SHOULD be able to return to ebb n flow by setting the flood level to JUST BARELY touch the bottom of the cubes, and let the roots- which look VERY healthy by the way!- colonize the HT below and be flooded.

 

[kenned]

yeah.. Thats were the problem comes.. I changed the the system, so it's not possible to make it a ebb'n flow anymore...
I can only feed from the top.. (don'tknow the word for that kind of system...)

Hmm, is that a bad thing??

 

[littlebud]

you have yourself a recirculating dwc system..or a waterfarm..peace

 

[kenned]

Really nice looking plant you got there, littlebud!

 

[littlebud]

yes sour diesel ibl is top notch...love her to death and thanks for the compliment...nice to see some ingenuity man...i think your new rig will work way better...get the rapid rooters though man..rockwool sucks ass in my kind of humble opinion lol

 

[kenned]

No problem.. When something looks beautiful, you should say it..

Well, to be honest, I dont really think I have changed that much...

I only removed the plastik around the RW blocks...

But I will wait and see what happens... I have increased the fert. a little, to ca 1700 µs (1,7ec?) The roots were looking fine, so I will try and see how it goes..

How come you hate rockwool so much??

cheers..

 

[littlebud]

ph for one and the shit dont breath and promotes stem or stalk rot...i just grew out of that shit a long time ago...anything is better in my humble opinion

 

[kenned]

hey..

Thanks littlebud..

I just have 1 last question... I have seen this lotsof times before, just can't remember what is causing it...

Anyonecan help me?

 

[Apollo11]

Heat stress

 

[kenned]

you sure about that?

It's really not that hot in there...

And it has gotten worse over the last couple of days..

Anyone?