What’s going on red edges

ab2t2000

Well-Known Member
Gladly say I could be biased and you could be totally right @ProPheT 216

Especially if they've had a bad start in them autopots, they're not exactly the best thing for encouraging a great root mass.

It's all part of the same triangle isn't it.
So I’m gunna make my temps 27-29 c with a 60rh day time and 16-21 c nights 60rh?
 

1212ham

Well-Known Member
So I’m gunna make my temps 27-29 c with a 60rh day time and 16-21 c nights 60rh?
I'd raise night temp as well, I believe its better to keep night temp closer to day temp.

A general comment... coco should only be flushed with weak nutrient solution, never straight water. RO and distilled are the worst, they leach cal and mag from coco.
 

ab2t2000

Well-Known Member
A bit yes but it will take it fine canna handles cold ok its cold plus high humidity all the time thats the killer ime
You think high humidity at night can cause these issues? just checked lights off and it’s 19c 80humidity
 

ab2t2000

Well-Known Member
Also I’ve done around 8 runs now and I’ve always kept temps 16c-21c night 25c-28c and never had problems
 

ProPheT 216

Well-Known Member
I just showed you what's it is. Your ph is off when you feed, and has been for so long you have your root zone ph out of wack. You have buffered your coco to a unusable ph. Stop saying random things and pay attention.
 

Nutty sKunK

Well-Known Member
Is 16.c to cold for night temps?
Something to consider. Root zone temp is important and I’m beginning to understand it more.

So when the lights come on they are at full power, unlike the sun which takes hours to get to full strength. Not to mention the ground is better at holding warmth than a small exposed pot.

This causes issues as the roots can’t access nutrients/water as easily and the leaves pay the price.

May not be the absolute factor in why the plant is unhealthy but will be causing stress.

19-21c is best for rootzone temp
 

conor c

Well-Known Member
I just showed you what's it is. Your ph is off when you feed, and has been for so long you have your root zone ph out of wack. You have buffered your coco to a unusable ph. Stop saying random things and pay attention.
This your ph is off bro its definitely that

You think high humidity at night can cause these issues? just checked lights off and it’s 19c 80humidity
No i mean when in bloom keep it low its not humidity that is the issue rn it is some nutes are locking out other ones long as the temps stay above 15 c that shouldnt happen but u over fed something and that can lock out other nutrients like magnesium as well regardless of temps thats what he talking about
 

ab2t2000

Well-Known Member
This your ph is off bro its definitely that


No i mean when in bloom keep it low its not humidity that is the issue rn it is some nutes are locking out other ones long as the temps stay above 15 c that shouldnt happen but u over fed something and that can lock out other nutrients like magnesium as well regardless of temps thats what he talking about
So just I flushed from res or use a spray?
 

ProPheT 216

Well-Known Member
Best asking someone who uses auto pots that one probably from rez all the way to through the system id imagine bud
First thing to go is change how u measure ph. Your meter is trash or you aren't doing it at all. Figure out if your low or high. And water with the proper ph. Maybe a point or 2 lower or higher to start to swing the pH back. Say u want 6.2 in coco but your slurry test shows 5.0. your should water at 6.5 for a few waters because the coco is gonna drop that 6.5 quickly.till the pH comes back up

Better meter or calibrate
Slurry test
Water with proper solution
Don't flush coco ever with just water
 

ab2t2000

Well-Known Member
First thing to go is change how u measure ph. Your meter is trash or you aren't doing it at all. Figure out if your low or high. And water with the proper ph. Maybe a point or 2 lower or higher to start to swing the pH back. Say u want 6.2 in coco but your slurry test shows 5.0. your should water at 6.5 for a few waters because the coco is gonna drop that 6.5 quickly.till the pH comes back up

Better meter or calibrate
Slurry test
Water with proper solution
Don't flush coco ever with just water
I have a £600 blue lab ph controller and £60 ph stick the ph on both are same both are 5.9 ph i believe it’s 5.5-6.5 ph is good for coco hydro
 
Top