Need help with my plants

I have 4 plants growing on my hydro table and they have started to so signs of sickness iv been looking on this tread for 2 days now aND I can't figure it out. The leaves are Turing yellowish and brown spots on them and the leaves are curling they seem to have a weird growth to them. I only have the one picture for now. They are growing under a 400watt MH. I was thinking it might be a calcium problem but not to sure. I don't wanna go out and spend money on something I don't need.

Start from roots up, are they healthy?

What have you been feeding them?

The roots look fine they seem to be nice and white. And I'm feeding them dutch nutrition formula grow stage. The mother plant looks Nice and healthy. Just the clones on this table are looking very sick I donno. My table holds 40l of water and I pUT in 200ml of nut. The bottle Says 5ml for every liter of water.

GreenThumb88 said:

The roots look fine they seem to be nice and white. And I'm feeding them dutch nutrition formula grow stage. The mother plant looks Nice and healthy. Just the clones on this table are looking very sick I donno. My table holds 40l of water and I pUT in 200ml of nut. The bottle Says 5ml for every liter of water.

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Thats probably for a full sized plant. Cut that to a quarter strength for clones. You probably fried them soctake new clones asap. Those might come back for ya but they look bleak. Full strength feed is for a few plants in full flower, under a 1k bulb. Like most of the industry uses. You cant feed sprouts full strength food or they burn.

So it looks like they might just be over feed? It'd weird I have 2 strains on the table the one I'm having problems with is the white cookies. The dark angel looks nice dark green no brown spots.

Ya they look burnt to hell. Lower crispy leaves. Or light fried, but id guess foods the culprit.

Yea I doubt they would be light burnt the light is at least 3+feet above the plants.

Now if I used a root wash I have for hydroponics would that help the problem from getting worse? They are only maybe 3-4 inch tall right now. I know the stuff that's damaged is messed up and won't go back.

GreenThumb88 said:

Now if I used a root wash I have for hydroponics would that help the problem from getting worse? They are only maybe 3-4 inch tall right now. I know the stuff that's damaged is messed up and won't go back.

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Well nutrient burn cant be washed away. The best thing for it is jusy cutting out/down the food.

Ok I'll drain my table and just start with water for a few days then add 1/4 strength dnf

Burntthumb88.