Nutrient burn PH 6.8 to 6.7 run off

[Zenpaii]

I have just fed my plants the new 2-4 week schedule today I have checked the temps they are fine and humdity is around 60 using Coco coir.

I can see a light burn at the tips of the plant it's very small but this is after a few hours of their new feed I will attach my sheet to the thread.

I have checked the run off and ppm is around 330 but ph is 6.7-6.8 wwhich is maybe slightly high do the plants need more nutrients or does it need a flush I have no clue what to do first. I will keep a eye and update

 

[Edinburgh]

While possible to grow a plant with a ph of 7 but you want to keep it around 6.2, fill a 16oz cup of water add a small splash of white vinegar stir and give to plant go easy you can reapeat, to raise your ph same drill but use bakeing soda this will raise ur ph.

 

[Zenpaii]

Looks like it was a ph issue I thought that maybe because I let it sit in it's run off for a couple of hours that that was the issue not further burning as of yet when your a noob like me i be watching these plants like a hawk got my anxiety going up lol

 

[Frego]

How old is the plant

 

[elduderito]

I think they were fed too early and perhaps too much ... from what I've read seedlings don't need food until they've started forming five-finger leaves (4th or 5th node) .. I've definitely made this mistake before

 

[Zenpaii]

I think they were fed too early and perhaps too much ... from what I've read seedlings don't need food until they've started forming five-finger leaves (4th or 5th node) .. I've definitely made this mistake before

Plants are 2 weeks going on the thrud week this week I found the issue was actually the ph it was to alkaline I did not ph down the feeding properly it was 6.8 when fed and I think when it comes to seedlings I only add calmag and seaweed extract to help the roots as the Coco coir doesn't have any nutrients and I'm using RO water at the moment

 

[Moshmen]

Not a coco user but pretty sure ph should be down 5.8-6.2 ish buy some real ph up/down - citrus and baking soda will irk but don’t last long and can cause swings