hydro - seedling issues

Sidonha · Aug 19, 2014

hydroMD said:
Id be willing to bet you can keep a ppm of 800-900 all the way through your grow cycle and be just fine. 1400ppm is pretty high for most strains.

You gotta remember that every seed is going to be a tiny bit different in what it wants. Its better to start on the low side of the ppm game and when you see defeciencies SLOWLY increase. 100ppm changes at a time works well.

I have a cut that burns above 900ppm.... i e uad skunk plants that like about 1300ppm

Thnx for comment! I search for info about my strains and found that WW and Aks are pretty tolerant to high levels of ppm and easy to grow too, but the OG Kush is not. I might do two feed solutions one for the ww and aks and another for the og kush. For sure i'll stay on the low side of the ppm game :bigjoint:

. Slowly increase when i see deficiencies seems to be the better way to get to an optimal number.

superstoner1 · Aug 19, 2014

I have had many, many strains and yes, most can easily handle 1500 and up to 1800 in my aero system but after many years of documented harvests and tightly controlled comparisons: less is better. The same strain that doesn't burn or curl at 1500 tastes better and yields more at 900-1000ppm. And if you are using chemical nutes the chances are even much higher of problems, I use organics.

hydroMD · Aug 19, 2014

Sidonha said:
Thnx for comment! I search for info about my strains and found that WW and Aks are pretty tolerant to high levels of ppm and easy to grow too, but the OG Kush is not. I might do two feed solutions one for the ww and aks and another for the og kush. For sure i'll stay on the low side of the ppm game . Slowly increase when i see deficiencies seems to be the better way to get to an optimal number.

I dont know how much free time you have, but its twice the work running two seperate nutrients. Id just try to keep everything at 800-900 ppm and see what happens if I were you!

If the heavy feeders look yellow try increasing slightly to make sure the light feeders can take it. If your using quality nutrients i garauntee you can find a happy medium

Hydroburn · Aug 21, 2014

I usually feel like I am wasting nutes higher than 650ppm... short veg .5 scale ppm

Sidonha · Aug 26, 2014

many thanks guys

16 days now , i start to feed then 3 days ago 1x/day with 500 ppm (100ppm tap water + 400ppm nutrients)

is going all right so far, just maybe a little slowly

is time to increase the nutrients or give 2x/day instead 1x/day?

this one looks like the leaf veins are getting black or something :

i'm having some problems with the temp. at the top of the plants its between 28C and 33C , and in the room 25C. working to solve that

I appreciate any comments

Peace

PetFlora · Aug 26, 2014

I find RW holds too much water for young seedling/clones

Instead, I use starter cubes, which I cut in half to prevent root ro

As soon as the roots exit the bottom I transfer to net pots filled with polished ornamental stone (The Dollar Store)

superstoner1 · Aug 26, 2014

What is your pH?

Sidonha · Aug 26, 2014

superstoner1 said:
What is your pH?

as I'm still watering manually every time i set to ~5,7

superstoner1 · Aug 26, 2014

I would like to see run off pH. Rw is notorious for pH issues and that's what it looks like.

J.Mike · Aug 26, 2014

superstoner1 said:
Your objective would probably fry them, at the least stress the hell out of them. They still have their own food source and don't need anything else. Take some good advice from somebody that has had great success in growing: less is much better with nutes. I have had over 50-60 strains in the last 3-4 years and would never, ever think of giving any plants that young even 300ppm. 800 would shock them and 1400 would probably kill them. I take 3-4' tall plants to start flower at 800ppm and never go above 1000.

So... if you take the time read SS posts and he's not the only one, and I agree, should not feed anything til initial set of leaves start turning.. They wont grow any faster than all your conditions combined...

Sidonha · Aug 27, 2014

superstoner1 said:
I would like to see run off pH. Rw is notorious for pH issues and that's what it looks like.

todays feed :
ph before 5,64
ph after 5,72

i was using chloridric acid from aquarium ph down. i dont know if this acid is bad for plants. Today i use a lemon

Temps. are back to ~25C - 28C

superstoner1 · Aug 27, 2014

Do not use a lemon, ever. Get the proper tools to do the job.

Sidonha · Aug 27, 2014

I use lemon today cause its written on grodan RW instructions that i can use a lemon.
The problem is... at my location the only weed related product i can find is GH hydroponics pH down but 100ml its about 80$

superstoner1 · Aug 27, 2014

A gallon runs me $18.

Sidonha · Aug 27, 2014

Thats great...Hehe

Here in south america is hard to find that kind of products . its 80$ for both pH up and pH down. I'll order at internet and wait 2 months to get the stuff. Meanwhile i will pay $40 for pH down at my local shop.

superstoner1 · Aug 27, 2014

Damn dude, that sucks.

waterdawg · Aug 27, 2014

Sidonha said:
Thats great...Hehe

Here in south america is hard to find that kind of products . its 80$ for both pH up and pH down. I'll order at internet and wait 2 months to get the stuff. Meanwhile i will pay $40 for pH down at my local shop.

How much is sulphuric acid? I have used it as well, works well once you dial in amounts. Just another option if phosphoric acid is expensive.

Sidonha · Aug 28, 2014

waterdawg said:
How much is sulphuric acid? I have used it as well, works well once you dial in amounts. Just another option if phosphoric acid is expensive.

thanks man . I searched and found that i need special license to buy sulfuric acid

---

I bought today the general hydroponics ph down and hanna solution to calibrate my ph meter.

I find out that my ph meter was 0.37 off :wall: