GNick55 said:

can you take a photo from above the canopy?
things don’t look good.
do you see these kind of spots in other places? kinda white and fuzzy?

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Aqua Man said:

What are your room temps? Highest and lowest.

Lighting and how close?

Drop feed to 800ppm

Likely not watering often enough. They look like they are pretty hot.

What kind of lights and how close?

You over fed then flushed so likely now they are hungry. You should always do a light feed after flush in coco.

What the ph and ppm of runoff?

How often are you water and how much?

What size of containers and did you add perlite?

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Stevenh82 said:

Their in 5 gallon breathable fabric pots with 70/30 coco/perlite
Room temp is about 24 degree c all the time.
the lights are 18 inch from the canopy 18 on 6 off.
I've always watered them twice per day once in the morning and once at night. when I flushed them I gave them half feed for 2 days then 3/4 for 1 day then finally full on the 4rth day.
I cant remember what the run off ppm was I'll water them later and get back to you.

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