What is causing these spots??

I have 5 DWC systems going right now all but one have 2 plants. The buckets are 18 gallons room temp is 70-80f humidity is 50-60% 18-6 light cycle with 600w MH conversion bulb. PPM in each bucket are 230-250, PH is 5.6 water temp is 67f. I use RODI water and GH 3 part flora series. This plant is Bag seed and it just started doing this. This plant is in its own bucket

put your ph to 6.8

sorry guys my CP crashed when I tried to upload my photos, Im on my Iphone Ill put pics up as soon as my CP is up and running

weedgrower420GT said:

put your ph to 6.8

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WUH WUH WHAT! Why 6.8 everything Ive read says a PH level of 5.2-5.8 is perfect for nutrient uptake. So why 6.8??

GROWFAQ

I like to run my PH around 6.

Ok this is the bagseed all by itself

yes its the ph!!!

This is the Greenhouse Seed Co. Lemon Skunk. Teh 1st pic shows 2 of the Lemon in the same bucket doing good. The 2nd and 3rd pic shows another set of lemon in a seperate bucket not doing so good.

The 1st pic is the overall grow. The 2nd pic is of my Paradise seed co Amsterdam Flame both in the same bucket the front 1 doing good the back 1 was doing good and is now looking bad

Ok so 2 people say its the PH but Im running it at the recommended level. If its the problem what should I raise it to? And what will raising the PH do? Will it make the plants lockout some nutrients that may be causing the problem? Or is it just the PH itself causing the problem? Sorry for the questions just trying to learn and understand as much as possible.

5.4 - 5.8 is for Hydro systems for soil grows you want it around 6.5 - 7 you are killing your plants with that acidic of a PH

AlbinoMan887 said:

5.4 - 5.8 is for Hydro systems for soil grows you want it around 6.5 - 7 you are killing your plants with that acidic of a PH

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My grow is DWC Hydro. Update my PH is now 6.4 I raised based on the advise I got so we will see if it helps.

Update as of 2/19/08

Bagseed

PH 6.3
Temp 78f
water temp 67f
PPM 215
18-6 24" MH 600w

These are the lemon skunk

Paradise Seed Co. Amsterdam Flame

hey i'm new to growing but the way your leaves are drooping could they be getting 2 much water?
also cant tell exactly by lookin at your pics but have you checked for mites?

anybody??? Its getting worse, last night I addded 1/4 teaspoon per gallon of Epsom Salt and Sprayed them with RODI and Epsom Salt thinking its a Magnesium prob but Im not sure. Please Help

Update as of 10 minutes ago:

Bagseed

This is the Paradise Seed Co. Amsterdam Flame

These are 2 of the Greenhouse Seed Co. Lemon Skunk that are doing bad