Leaf problems RDWC

[Peterpangreen]

Hi guys,

Got these 6 criticals in my rdwc system and they're now for a good week in and showing some leaf signs. One plant has brown-ish spots and others some blue-ish on the edges and some yellow tip colours.
Anybody here van help me identify what this could be?
I only added tapwater (280ppm) and pH 5,8 and yesterday put just a little bit calmag to it.

 

[Chris Scorpio]

So yer not feeding them any nutes??

 

[Peterpangreen]

So yer not feeding them any nutes??

Not yet because I thought the tapwater is almost 300 ppm a bit high.. or ?

 

[Chris Scorpio]

How big are the plants

Ppm in tap is misc garbage, fish guts, and who knows....lol

In DWC always start with 1/4 strength nutes
Get a pH pen and ppm pen,test yer water

My tap is like 600ppm, I see rocks falling out of it ..lol

And read read read...then read some more

Also get an enzyme cleaner like hydroguard or z7, z9 in Kanuckistan

 

[Peterpangreen]

How big are the plants

Ppm in tap is misc garbage, fish guts, and who knows....lol

In DWC always start with 1/4 strength nutes
Get a pH pen and ppm pen,test yer water

My tap is like 600ppm, I see rocks falling out of it ..lol

And read read read...then read some more

Also get an enzyme cleaner like hydroguard or z7, z9 in Kanuckistan

They're only 7-1/2 days till they saw light, ppm in rdwc is now around 300's with only just a little calmag added and pH is 5,8.
Here some pics

 

[Chris Scorpio]

Like I said, start on 1/4 strength base nutes, she is starving

What nutes do you have??

What is your water ppm at, with no additional stuffs

7-1/2 days
5.8

Lol, math class for ya, or punctuation....lol

 

[Chris Scorpio]

Lol

We talked about yer 7,5 stuff before....it's all coming back to me

 

[Peterpangreen]

Like I said, start on 1/4 strength base nutes, she is starving

What nutes do you have??

What is your water ppm at, with no additional stuffs

7-1/2 days
5.8

Lol, math class for ya, or punctuation....lol

HAhahahahaha
Sorry 7-1/2 days
Water ppm without additionals is around 275ppm
Nutes: General Hydroponics flora trio, Botanicare Hydroguard/silicablast/Cal-Mag, Great white, Humboldts Golden Tree, Advanced nutrients voodoo juice.

 

[Chris Scorpio]

Kill everything but GH trio at 1/4 strength
Calmag at half strength
Hydroguard at full strength

And watch them take off

 

[Peterpangreen]

Kill everything but GH trio at 1/4 strength
Calmag at half strength
Hydroguard at full strength

And watch them take off

Someone told me here to not add nutes untill 4th set of true leaves.. wouldn't I be overdoing them now.. !?

 

[Chris Scorpio]

Not in DWC

These are my kiddos today, all in DWC, all started as seedlings with 1/4 strength

You tell me if I did wrong

 

[Peterpangreen]

Not in DWC

These are my kiddos today, all in DWC, all started as seedlings with 1/4 strength

You tell me if I did wrong

They looking great! What's about the max ppm I can go if I add what you suggested?

 

[Chris Scorpio]

Ppm is irrelevant if you go 1/4 strength nutes as I mentioned

Do it, check ppm, move forward

I don't go by ppm, I just measure to determine if my plants are eating nutes in the DWC or not

I go by strength. I max at about 1/2 strength base nutes, full strength on additives.
Then I always know what I'm running at

 

[Peterpangreen]

Thanks for your advise man, it's my first time rdwc so still finding my way to go.
How offen do you use hyroguard?

 

[Chris Scorpio]

Hydroguard in every time I add nutes

 

[Peterpangreen]

Btw. what's the ideally pH levels you keep during seedling/veg/bloom stage?

 

[Chris Scorpio]

I'm around 5.6-6.0

I'll let it fluxuat a bit, keep my plants on their toes