Need help!! first 2 leaves turning yellow and onather problem [first grow]

[TDKR1986]

5 days after sprout

Plant1 - first 2 leave turning yellow and fisrt true leaves are curved downward



Plant2 & 3 - Like nutes burn



I setup in DWC bubbleponics
waterpump and airpump 24/7
nutes - General Hydro gro=2.5, micro=5, bloom,2.5 [5 gallons water]
pH = 5.8
EC = i have no ec meter
temp = 25-30 degree C
Hum = More than 50%
Light = LED 900w setup 3fts from plants [run 24/7]

Pls help me to solve for this problem, thank you

 

[Organic Mechanic]

Ok, that looks like mold growing, you may want to try covering your rockwool and hydroton with something. It looks like there is too much moisture, is the rockwool above the water line??

since its young, i would keep the nutes to nothing more than rooting hormone, and leave all excess nitrogen out of your system.
wait for about 2 weeks in before introducing nutes.

I would try draining what i had and starting over, and go with only cal/mag and root booster.

 

[TDKR1986]

Thank you for your suggestions.

:Cool bud:

Now, i'd changed water already and put only root hormone.

 

[TDKR1986]

After three days with out nutes, leaves are claw

everyone please, tell me what happen to my plant

 

[Muddy]

I disagree on having no nutrients in your solution. Even seedlings need a small amount of N, as well and some P and K. I would suggest using 1 ml per gallon of Grow, Micro and Bloom until you have 3-4 sets of leaf nodes, then increasing it to 1/4 of the recommended strength. Your first pictures suggest that the rockwool is too wet. Your water level should be below the rockwool. If it's sitting directly in the solution the rockwool can stay too wet and eventually cause root rot. If that's the case it could also explain the turn down of the leaves in your last picture. The green you have on top of the rockwool is algae growth from the rockwool being exposed to light. Next grow you might consider setting the rockwool a little lower and covering it with the hydroton.

 

[namvet25]

Those first round leaves are seed leaves and they will turn yellow and die off.This is normal and nothing to worry about.

 

[TDKR1986]

Thank you both, that help me a lot.

:grat:

 

[Organic Mechanic]

Most rooting hormone has NPK values. They are low, and more than enough to keep plants alive.

The other reason was so that you didn't inadvertently give the mold food to feed on.


I really should have asked if yours had an NPK rating, but I assumed It should have them. That is why I suggested only using the rooting hormone. The plant looks much healthier to me, so I'm guessing that there is some nutrient in the hormone.

 

[Waira]

...Sorry, but that is not mold... no fungus is green!
...TDK'- I'll ask around the staff for a good anti-algae product, likely something from the aquarium hobby market... it's obnoxiously persistent stuff! Meantime, take Muddy's advise,....

 

[Organic Mechanic]

...Sorry, but that is not mold... no fungus is green!
...TDK'- I'll ask around the staff for a good anti-algae product, likely something from the aquarium hobby market... it's obnoxiously persistent stuff! Meantime, take Muddy's advise,....

Mold is a misnomer. Algae and Mildew are mold/fungi. It all comes down to how much moisture is present. Take moldy bread for instance. Lets just call it organic growth, either way, lack of moisture light, and food will kill it.