Need help white widow autoflower

This white widow autoflower is getting spots on the leaves, I also noticed a little brown or reddish colour on the roots. It is in a dwc system. I changed water and cleaned system today. I am using general hydroponics 3 part system and cal mag. I put 1/2 tsp micro,1tsp bloom, 1/2tsp grow and 1/2 cal mag per each gallon and that puts me about 400ppm as well ph the water to about 5.7 any suggestions on what I should be doing?? It is hard to see the reddish on the roots in picture

Try going up around 600ppm and a little more calmag

Also write down to ph and ppm in the morning and night so you can tell what you need to do

Thanks I will record everything g and post it here

Ph and ppm day and night and picture of a plant to see how they look.. Drooping and curling or whatever

Ok here is what I have so far,


Non 18 4.30 5.9ph, 405ppm

Nov 20 9:00 am 6.4ph 407ppm

Nov 20 11m 6.7ph 370ppm dropped ph to5.5 water was down half gallon

Plant still seems to be growing but don't know about these spots.

Attached som pictures

Also attached a picture of a northern lights auto flower I have in soil, this plant was doing awesome but all of a sudden stopped and seems to be getting crispy now.

What kind of soil.. And are you over watering? Is there bugs?

I am watering when the first inch of soil feels dry, and I can not see any bugs around.

Here is some more info from the white widow

Non 18 4.30 5.9ph, 405ppm

Nov 20 9:00 am 6.4ph 407ppm

Nov 20 11m 6.7ph 370ppm dropped ph to5.5 water was down half gallon

Nov 21 8:30 am 6.1ph 442ppm

Nov 21 8:30 pm 6.3 ph 454ppm

Nov 22 8:00am 6.4ph 414ppm

calmag deficiency if your PH is stable.... it would require some large swings in PH to acquire metallic fishscales on the leaves (the pictures kinda look like fishscaling on the leaves in a few).

How are you measuring the PH of ur soil?

What kind of soil is it? is this miraclegro? Whats up?

The first 4 pictures are of a plant that is in dwc and it seems to be having large ph swings.
As for the plant in the soil I am just giving it water with nutes that is ph ed when the soil is dry
Here is a pic of the soil I used

be sure that you are not overwatering at all. you shouldnt be watering more than maybe a half gallon every 3-4 days right now.

Get rid of the miracle grow and go get nutrients made for weed that is going to be smoked.... Not veggies that will be eaten.

Do you mean get rid of the soil? The soil I used was miracal grow but the nutrients I use are general hydroponics 3 part system with cal mag. Are these good nuterents?

RussianReaper said:

Do you mean get rid of the soil? The soil I used was miracal grow but the nutrients I use are general hydroponics 3 part system with cal mag. Are these good nuterents?

Click to expand...

Been using them for years.....

Hey guys, back with the white widow here again. The plant seems to be growing awesome. Did some LST on it as well. I am still getting the dots all over the plant, I change my water out every Sunday, the plant seems to like the ppm around 400 ish. I am putting 1/2tbl spoon of grow, 1/2tbl spoon micro, 1tbl spoon bloom and 1/2tbl spoon calmag. My water temp in the dwc is around 21 to 22.5 c. I do notice if I add let say 5.7 ph 24hr later I am almost at 6.5. Constantly adjusting ph down. Any suggestions?

Oh and it's per gallon on the nutrient amounts I mentioned.