slow developing seedlings

[Farmer Joey]

What about humidity?

 

Did you pre-soak the CoCo lightly with CoCo A+B?

 

Have you measured PPM run-off also?

 

Another EXTREMELY common reason for slow seedling growth is over-watering. Make sure you let the CoCo COMPLETELY dry before rewatering to encourage root development. I know people say feel free to water in CoCo, but this doesn't apply to the seedling stage and I've personally killed 2-3 seedlings in CoCo just by watering once a day. Now I water em once every 4-5 days. You can also add some pre dried CoCo or Peat on top to speed up drying or use a heating tray.

Edited August 2, 2012 by Farmer Joey

[Badseed77]

I have not had a huge amount of grow experience but found that the 1st 2 weeks very little happens , like puka said there is alot going on down below.

I only watered seedling in coco about every 4-7 days .

Dont stress mate the next few weeks things will take off .

[oldman_67]

Yeh hardly watered them till I flushed them with PhD water and nutes. Had been misting with a light nute solution. Humidity is okay,

[buzzo]

Don't let the Coco dry out.

Feed at around 1.2 E.C.

They won't start to take off until the end of 3 weeks then they should get a move on, first 2 weeks is very slow.

Thats normal

[El Gato]

Yes I agree with buzzing, don't let the coco dry out. You withheld find a huge spike in ec when that happens.

[oldman_67]

Watered at 1.1ec lastnight. And at 5.7 ph, run off was about 6 so I'm happy it wasn't high like I thought it'd be.

[El Gato]

Cool, Ph is good. Ec may be a little high. If you measure the ec of the waste it should be about what ya put in or lower. If it's higher than what you put in you may be overfeeding them.

[oldman_67]

I water into a flower pot plate thing. And my Ec meter needa to be submerged in about 40mm of water. So should I just water till I can test the Ec or poor the runoff from each into a cup? I use my ph strips in the runoff which came out good.

 

My Ec was .45 before adding anything

Edited August 3, 2012 by oldman_67

[buzzo]

Forget the Run off E.C.!!!!!!!!!!

 

Concentrate on what goes in not what comes out.

 

My run off E.C when I have measured it is at best all over the shop.

Just remember to get at least 20% run off when feeding.

 

Roughly 50% pot weight when feeding. Treat for gnats can't go wrong.

 

 

Regularly check the PH meter accuracy.....you can have the best Hanna meter but the rule still applies.

[oldman_67]

They must have heard me, as they've rapidly developed there next set of leaves and are coming along nicely