Northern Lights Auto

[somec]

Hello, this is my NL auto around 8.5weeks from seed. Been having these strange dots for a while and it seems to be getting worse. Medium is coco coir with a little bit of perlite. Light schedule is 24/0 , if I do 18/6, moisture goes too high in the dark period. Also feeding Flora Trio series at 1/2 strength, last feeding was full strength(6-700ppm). Used to feed daily but out of fear of root rot I feed them Every other day now. 5 gallon textile pots. Using RO water with a little bit of tap water to raise my ph to 6-6.2. Water before nutes is around 70-80ppm. Tried adding cal-mag doesn’t seem to do anything. I did a flush when dots started to appear a week ago. Also the leaves that are not exposed directly to the lights are darker and in good shape overall.

 

[Herb & Suds]

Slowly starving to death

 

[Nutty sKunK]

Hello, this is my NL auto around 8.5weeks from seed. Been having these strange dots for a while and it seems to be getting worse. Medium is coco coir with a little bit of perlite. Light schedule is 24/0 , if I do 18/6, moisture goes too high in the dark period. Also feeding Flora Trio series at 1/2 strength, last feeding was full strength(6-700ppm). Used to feed daily but out of fear of root rot I feed them Every other day now. 5 gallon textile pots. Using RO water with a little bit of tap water to raise my ph to 6-6.2. Water before nutes is around 70-80ppm. Tried adding cal-mag doesn’t seem to do anything. I did a flush when dots started to appear a week ago. Also the leaves that are not exposed directly to the lights are darker and in good shape overall(see last pic).View attachment 5017524View attachment 5017525View attachment 5017526View attachment 5017527

Light stress. You said it yourself, bottom leaves ok.

You are giving them 2x more light than a photoperiod. Raise your light or add a night cycle

 

[Autodoctor]

Coco needs fed everytime

 

[somec]

Light stress. You said it yourself, bottom leaves ok.

You are giving them 2x more light than a photoperiod. Raise your light or add a night cycle

I am running out of space, but I will try dim the light to 75%.

Coco needs fed everytime

I do feed with every watering. 1/2 strength gh trio.

Slowly starving to death

I will try upping the nutes and check run off ppm.

 

[MickFoster]

Plants that size should be fed multiple times a day to substantial run off with a pH around 6.0.

 

[LeastExpectedGrower]

Also, Check your Flora Trio schedule (use the PDF online not the one on the bottle). I've been using it for a couple Northern Lights autos I'm growing and they don't like to go above about 550-600ppm for feed. I've been using the 'light' schedule at half strength to be in that range. Any more than that 550-600 range and I get burning.

No comment on the frequency since I don't do Coco.