Sprouts in trouble, need help

[oaktree]

Can anyone tell me whats wrong with these, they are in rock wool, i think i messed up and put them on the ebben flow table to soon so i took them off an put them back in the dome. They are doing better but they are yellowing. Does anyone know what the problem is. I was thinking maybe ph is too high? Any help would be appreciated. Thanks.

Peace

 

[MynameStitch]

Ya, I would say you should wait for there roots to extrude before putting them on that table for one......

With the HPS light on I can't see the color of the seedling to well so I can't help ya until you get some new pics without the lights on.
The rockwool looks like it has to much water in it; the hydroton will not allow it to breath much since the roots are not protruding out of the rock wool, even if it is; still not enough breathing room yet with the root system being very small.

ALso can you fill out some of these questions? The more the better in helping you find out how the problem started.

HYDROPONICS:

What STRAIN are you growing?
What was the establishing technique? (Were the seed or clone?)
What is the age of your plants?
What PHASE are the plants in? (seedling, vegetative or flower) are the plants in?
What Technique are you using?
What substrate/medium are you using?(Hydroton, RockWool etc.)
What is the Water temperature?
What Nutrient's are you using? How much of each if using multiple?
What is the TDS/EC/PPM you are using?
What is the pH of the "Tank"?
Are you sure your calibration is correct on your equiptment?
When was your last watering?
When was your last feeding change? (ie. grow-bloom-micro-additional)
What size bulb are you using?
What is the distance to the canopy?
What is your RH Factor?
What is the canopy temperature?
What is the Day/Night Temp? (Include flucutaion range)
What is the current Air Flow? (cfm etc.)
Is the fan blowing directly at plants?
Is your water HARD or SOFT?
Has plant been recently pruned, cloned off of or pinched
Have any pest chemicals been used? If so, What and When?
Are plant's infected with pest's

 

[ontheshelf]

Hey im the second half to this grow.

What STRAIN are you growing? 3 Different ones. Dsd, Bekko2, blue satelite.
What was the establishing technique? Seeds
What is the age of your plants? Little less than a month from germ.
What PHASE are the plants in? Im guessing seedling.
What Technique are you using? Indoor hydro, ebb n flow system?
What substrate/medium are you using? Rockwool and hydroton
What is the Water temperature? Room temp, when there were in the table.
What Nutrient's are you using? None at the moment.
How much of each if using multiple?------
What is the TDS/EC/PPM you are using?....?
What is the pH of the "Tank"? Was above 6.0
Are you sure your calibration is correct on your equiptment? Yes
When was your last watering? Yesterday
When was your last feeding change? None
What size bulb are you using? 600watt
What is the distance to the canopy? At first 1.5 feet. Now 3+ feet.
What is your RH Factor?....?
What is the canopy temperature? 80 degrees
What is the Day/Night Temp? Max 80, min 65
What is the current Air Flow? vortec 6''
Is the fan blowing directly at plants? Intake fan is.
Is your water HARD or SOFT? Never tested, used fresh tap water.
Has plant been recently pruned, cloned off of or pinched Nope
Have any pest chemicals been used? If so, What and When? Nope
Are plant's infected with pest's. Nope

 

[MynameStitch]

10k would best help you out here he is really good with Ebb and Flow he said; How long are you misting them and allowing them to flood the table? How often?

You will need a weak amount of nutrients for those seedlings in those rockwool cubes they can't get nutrients from the rockwool...... they need a little food but weak ..... can you take pics without the light on please?

Are you manually watering them? Take a pic of your setup so I can see how your system is setup... sounds like to me you have them in hydroton and rockwool and flooding them manually?

 

[10k]

To the thread starter "oaktree"...
I dont know wtf this other handle is doing here in this thread. Whether its you or just a thread highjacker ? Please explain ?

Anyway, heres a few quick tips for your flood table seedlings oaktree...

That one in the third picture down looks like its pushing itself out of the rw minicube instead of growing the root downwards. You can split the rw minicube carefully and reset it lower in the cube. Try not to have any smashed rw minicubes btw, so avoid squeezing those minicubes.

Like stitch said, they're hungry and need feeding. Seedlings in hydro mediums like rw must have a food source. The only food they have right now is the two round 'seed buster' leaves (cotyledons). They'll need a decent hydro nutrient, although very weak (200ppm) at this young fragile age. This hunger is why they're yellowing right now.

They don't need to be in a dome. No seedling should be put in a dome ever.

You can have them in your e&f system now, the hydroton will help wick away excess moisture in the minicubes. Set them in so that the tops of the minicubes are about three quarter inch below the top of the rocks.

Then set the flood height so that it just touches the bottom on the minicubes to as high as only a quarter inch up from the bottoms of the minicubes. Flood the table every three hours until they're grown larger, then you can adjust the floodings to every four hours.

Do something about lowering the temps in the grow space.
Its best to keep your nutes below 75f. Although not really as critical in e&f since the roots arent constantly underwater like they'd be in a dwc system.

Keep your chem nute pH between 5.5 and 6.2. Set it at @ 5.5 and let it drift up to 6'ish.


ps...The blue satelite sprouts may show you some classic blueberry mutations like twisted or freaky looking leaves at first, but they'll grow out of it, so dont freak out about it or cull them. Give em a fighting chance, and you'll be happy.

hth,
10k


Questions...
What nutes do you currently have for this grow ? (are they hydro specific with micro nutes)
What pH adjustment chems do you have ?

 

[oaktree]

Thanks for the help Mynamestitch and 10k

10k the other handle is the other person in on this grow... it's a co-grow. We've had them in the dome, and they started to get better, why shouldn't they be in the dome? Some of the sprouts do have a nice root structure that is out of the rw. Right now we are just hand feeding the sprouts with a dab of liquid karma, today is the first watering with lk. So the cubes can get wet when we flood the table? 'll get the ph lowered to 5.5, we just have some generic hydro nutes, should we make like a quarter strength nute mix? Here are some more pics and with the light off. Once again thanks for the tips, i guess we'll put them on the table and just hand water the ones without roots poking out? I guess you've grown the blue sat? if so how was it? vigorous? easy or hard to grow? It took me a while before i decided to go ahead and drop the cash for the seeds, it just seemed like a really enjoyable strain. Once again thanks man.

I have some pics but they wont upload at the moment so i'll post them when it lets me upload.

Peace

 

[MynameStitch]

SEedlings that are in domes are more prone to damping off and high humidity invites troubles.

Yes, the cubes can get wet, but like 10K has stated, only do so to the bottom of the rockwool cube to a quarter inch up from the bottom.

We need to know the brand of the nutrients to tell you your feeding and how much per gallon to use.

If you decide to hard water them, do not saturate them with water, the ones without roots do not need as much water as the ones with roots; make sure it's moist but never to dry and never soaked; saturated rockwool invites algae growth which cut the air flow to the medium and cause roots to stunt.

 

[oaktree]

these are from 2 days ago, they were doing a little better... still yellow but the green is coming back

DSD

Biko II

Blue sate 2.2

 

[HeadyPete]

oooh good zinc deficiency showing in that last one!

They'll recover as long as you keep feeding them. Just go real easy, they are little and delicate right now.

 

[MynameStitch]

Yup, like heady states they got zinc issues man..... what ppms you feeding them now? You put any nutrients in there?

THats why it's good to wait before putting them in there untill they have somewhat at least 2 to 3 sets of leaves.......

 

[oaktree]

Right now the only kind of nute's they are getting is a little bit of liquid karma. So you guys think they're ready for the table or should we wait till they all have sets of leaves with 5 fingers? Here are the pics from the other night. Thanks for the help fellas.