Leaves are curling or "tacoing" 3 week old seedlings

Scriabin

Member
Hey everyone.

I have been working on curing my first grow that started from seed. My girls are 3 weeks old and have gone through a learning experience together.

Here is my set up.

Aeroponics
watering every hour for 3 , 1 minute sessions
IMG_4047.jpgIMG_4048.jpgIMG_4049.jpg


Ph 5.8
24/7 lighting
Res Temp 63
Root zone temp 72
T5 432 8 light system; 5 inches from plant tops
Temp at plant tops 84
1500 co2
500ppm

I cannot seem to figure out what to do to cure them of the leaf curling/tacoing. I have moved lights up and down and seem not to see a change either way.

I have flushed the res.

I have lowered/raised the ppms.

I have 3 ph meter to make sure we are perfect

I use RO water with less than 13 ppm

I have no algae or smells

I have played around with water schedules and have seen no change either way.

I look forward to hearing what you all have to say.

Thanks
 

Scriabin

Member
Yes, of course. I washed that dirty stuff for almost 2 hours and then washed it some more. Plus the hydrotron is around the rockwool cube
 

notpatient

Well-Known Member
not sure but 24/7 might be a bit much for the lil' guys,,, everything needs some rest esp. just starting off and I myself like to keep lower temps
 

Scriabin

Member
not sure but 24/7 might be a bit much for the lil' guys,,, everything needs some rest esp. just starting off and I myself like to keep lower temps

Thank you for the info. I just lowered down the room to 76 and the ph to 5.6. I think it was a mixture of issues. My light is the right height right?

When do you recommend putting them under a 1000w MH?
 

svchop889

Well-Known Member
Nobody wants to say over watering? Its pretty visually obvious to me that that's the problem. Try cutting it to just 1 minute every hour and see if it improves
 

svchop889

Well-Known Member
well if you want you can just step it back slowly to see if the perk up some, but rockwool holds water pretty well and I really think that might be your issue. roots need oxygen at the root zone to perform proper transpiration. If a plant cant transpire water it can't take in nutrients either and you get what looks like a deficiency. Wait till the leaves reach up then water ;)
 

svchop889

Well-Known Member
Hey no problem, they look healthy enough to become very healthy very soon. the slight yellowing in the bottom leaves should green back out after everything is flowing right with them.
 

howhighru

Well-Known Member
Thank you for the info. I just lowered down the room to 76 and the ph to 5.6. I think it was a mixture of issues. My light is the right height right?

When do you recommend putting them under a 1000w MH?
when i used my T5 for veggin my babies i had them about 1-2 inches from the tops of them..
 
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