New day new problems!

[CrystalJack]

Well thought I had my problems under control looks like not so much the case.

All my old lower fan leaves are going completely yellow then dry out. On top of this my plants always look sad and droopy! No matter if it’s before a feed, after feeding all day same sad plants! Alsoy stems are terrifyingly purple, maybe due to the leds?

Running Fluence 2i leds at 35% a few feet from canopy currently day 17 since I planted clones.

Here is what I’ve been running environment

Day time 80-82f
Humidity - 72
Night - 74f
Humidity 66

Vpd - 1 kpa


They just got transplanted 2 days ago from 1gal to 5 gal royal gold coco/perlite.

Any ideas what causing my lower growth to be so upset? New growth seems a lot better!

 

[CrystalJack]

Here is a shot from the top showing the new growth.

 

[CrystalJack]

Also wanted to mention feeding at 1.1-1.2 EC am doing half strength of the recommended front row ag chart with added cal mag and power si silica

 

[ElGato]

I see some Leaf curl so to me it looks like you could back off the feedings for a few days and feed just straight water


thats all I've got

 

[CrystalJack]

I see some Leaf curl so to me it looks like you could back off the feedings for a few days and feed just straight water


thats all I've got

Thanks haven’t been water since transplant 2 days ago now, gave each one roughly 1.5 gallon , gave me a decent amount of run off.

Isn’t it bad to feed straight water in coco?

I had problems with nutes the first week so I’m hoping that’s what is still effecting the lower/older growth.

 

[PurplePotion]

If you’re using coco, use ph5.8 0.4EC cal mag instead of plain water. Idk what nutrient issues you had before but most of those leaves will never recover. I’d get rid of them. Focus on new growth. Check your run off ... if the numbers are out of whack you need to flush. Too many variables here. Easy answer: flush with .4ec calmag, then resume feeding ~.8-1.2EC.

 

[Medfinder]

Get rid of the dead lower growth is a start.

What kinda nute measurement device?

Have calibrated it?

 

[CrystalJack]

Get rid of the dead lower growth is a start.

What kinda nute measurement device?

Have calibrated it?

Have both the TrolMaster EC/PH probes in my res. I also check it against my blue lab pens. Both I have been calibrating every Week. PH has been around 5.8-6.1

Will give flushing with just cal mag and remove all the dead growth a go tomorrow

 

[Lyfespan]

immobile issue at work here. starts from oldest growth. pluck cannibalized leaves move forward as usual.

ph should be at 6.4 for coco unless its late bloom the drop to 6.0

if running ro add calmag till 0.2EC

note on calmag if it has iron it you're creating side issues with that

 

[CrystalJack]

immobile issue at work here. starts from oldest growth. pluck cannibalized leaves move forward as usual.

ph should be at 6.4 for coco unless its late bloom the drop to 6.0

if running ro add calmag till 0.2EC

note on calmag if it has iron it you're creating side issues with that

6.4 everyone has been telling me 5.8. I’ve been using calmag plus

 

[TanzanianMagic]

6.4 everyone has been telling me 5.8. I’ve been using calmag plus

Coco coir should be:

6.0 throughout the grow
6.0 to 6.4 in heavy flowering (higher uptake of P/K)
5.5 after flowering (higher uptake of trace elements)

However mainly the grow should be 6.0. Coco coir does that automatically. Perlite buffers to a pH of 7.0.

 

[RED 1]

Think you underwatering your plants, soil looks too dry,regardless how much nutrients you give them, even half the strength

 

[CrystalJack]

Think you underwatering your plants, soil looks too dry,regardless how much nutrients you give them, even half the strength

I had just transplanted these two days ago into 5 gals wanted to let them dry out some in hopes of roots searching out more water. They will be getting water again tomorrow and will be on a everyday feed schedule after that

 

[RED 1]

I had just transplanted these two days ago into 5 gals wanted to let them dry out some in hopes of roots searching out more water. They will be getting water again tomorrow and will be on a everyday feed schedule after that

Underwatering helps rooting system think smarter, look for moisture?,In the meantime the only think they feed upon is nutrients included in soil, plus the extra(half strength) you've been giving them?

 

[Lyfespan]

6.4 everyone has been telling me 5.8. I’ve been using calmag plus

calmag plus is the issue here, too much iron at the ph you are running

 

[Lyfespan]

I had just transplanted these two days ago into 5 gals wanted to let them dry out some in hopes of roots searching out more water. They will be getting water again tomorrow and will be on a everyday feed schedule after that

you dont want to let coco get dry ever

 

[Lyfespan]

I had just transplanted these two days ago into 5 gals wanted to let them dry out some in hopes of roots searching out more water. They will be getting water again tomorrow and will be on a everyday feed schedule after that

EOD or E3D is best for feed schedule on coco

 

[welldone]

the last three posts will help you by far take notice we all learn from our mistakes

 

[CrystalJack]

calmag plus is the issue here, too much iron at the ph you are running

Ok thanks and will ditch the calmag plus and find one without iron in it. Thanks for all the help guys!