amneziaHaze said:

roots look good.
but Ppm ~500 to 600, with tap water could be low since some tap waters are 400 ppms no idea what yours is but easy way to see if you have enough nutes is if in 1-2 days the ppms drops or raises then you know if she is eating or starving...
and from the look of your long and thin plants i would also say your not pushing the light hard enough or maybe its just because you dont train your plants i havent seen untrained plants in a long time...

Click to expand...

Grownsince95 said:

Unless these are clones of plants you've grown before their genetics could be responsible for what your seeing. Also like Amnesia said, if your tap water is already almost 300 ppm they should be getting 900-1000 by the time your done adding food, especially with that much light.

Click to expand...

kiwibud said:

Hey, thanks for the suggestions.
Since the whole system is around 300 liters/ 80 gallons the ppm dont really move at all with 4 plants in it.
Drop by 10ppm max in 2 weeks.
Tap water is 287ppm no chlorine.
Ph 7.6

I know this plant looks kinda atrocious, will take a pic of the whole tent later once the lights go on again
The 2 in the front both look this spindly, the other 2 in rdwc and the ones in autopots are scrogged and supercropped (waited way too long for the newer ones to pick up) and since its day 10 flower they are stretching into the lights - yea know this parts on me.

Is there any way to test, if they get enough oxygen?
Back when I was running e&f with no medium my roots would explode in a day or two as soon as they got in the tables.

So might be a lack of oxygen but anywhere I read, everyone says fallponics is superior.

Click to expand...

kiwibud said:

Canopy aint even due to different age of the plants and me being a lil lazy.
One can tell they are doing okay, no signs of too much stress, not hungry, not burnt.

The two in the back in rdwc are  trees.
front 2 almost 2 months in the system and look like a wet noodle.

Anyone having an idea besides ppm?
So far wrong strain for the system seems the most plausible, other grow reports look way better with faster root growth tho.

Click to expand...

Smokey0418 said:

I have used liquid orca but not the dry that you have linked for bennys.

It's a good product but I find Hygroben from Hygrozyme to be far superior, price being number one and then two it’s way stronger if choosing this route.

Waterfalls do a good job at disrupting the surface to get oxygen in there and yes it’s all that’s needed.
Over the years of watching , reading I have picked up a couple things and added those to my own system to pertaps help in adding more oxygen.
Instead of a singie fall in each tote I have used 1/4 inch spray tubes , which may hit my net pots and agitate . This is also plumbed to my drain to pump out my totes when I want to change my nutes with a couple shut off valves to route.

I have found all strains grow just fine and that it’s only a 100 or 2 difference in ec .
1.2-1.4 ec is what works for me.

Personally I would be using that number on top of your the tap.
We don’t know exactly what’s in the 300.
I might put 150 ppm of calmag in my water first then add fertilizer to 1.5ec .
Plants are bigger and monitoring should be easy.
12 hr later were is ec? Adjust accordingly
Ec goes up and ph up then it’s too high.
Ec goes down ph up and it’s too low.
monitor until I found stability in both ec and ph.
5.8 for vegging and 6.0 for flower.

For myself only on complete charges would I ever experience swings in my ph for couple days .
I just keep adjusting as I know my Ec number is right and then couple days like a light switch it’s stopped.

Now the bennys .
It’s your choice how to add them , if I was just planting my plants , I would plant into my net pots .
Then I would determine how much liquid orca or Hygroben I’m using .
Split it into 4 , take a Dixie cup and dip into my tote water. Add the 1:4 into my cup .
Supercharged Benny Dixie cup. Pour that through 1 netpot into system.
Now do that 3 more times.
Bennys added.

Water level about an inch under roots and touching my net pots.

I would maybe every couple days , dip my Dixie cup and pour through the net pots making sure I don’t get bad stuff happening above the water line.

Once the roots hit water once a week would be enough .

Click to expand...

WhatsHeDoingToday said:

I suggest you lower your ph to between 5.8 and 6.0 and test a liquid ph test kit vs what you are using now side by side comparison to see if they are even close to the same ph results. Also, your tap water has a very high ppm of 400ppm. You are on the cusp of having to go the R.O. route. Starting at 400ppm limits the amount of nutrient you can add by 400ppm. At this stage of veg you should be running around 650ppm nutrient . When you add your 400ppm tap that puts you in the 1050 ppm RANGE. You stated they can't take high ppm but get the environment dialed in and they will be able to handle the higher ppm much better. They look good but they are underfed. Also, waterfall ponics can be supplemented with Air Stones to enhance the oxygen levels in the nutrient reservoirs. I use one large air stone in my 130 qt igloo reservoir and 2 airstones per bucket. I also chill my water nutrient to 68 degrees to ensure oxygen levels are high and root rot is low... Im running dirty with hydroguard to eliminate root rot. So, add air stones to your reservoirs, cool your nutrient with chiller to 68 degrees, lower your ph levels to 5.8 - 6.0 range. Keep relative humidity about 60 percent. Up your nutrient levels (400 ppm tap water + 500 nutrient ppm = 900ppm) then monitor your ppm to see if its dropping every day. If its moving down then the plants are drinking. These are the changes I would make and monitor for change. Good luck with your grow, its totally salvageable so don't tear it all down. The PH is your biggest issue at the moment.

Click to expand...

kiwibud said:

Just double checked, the pen is still calibrated.
Ph is exactly 6.02
Ppm 701
Water temp is 19.5 Celsius/ 67 Fahrenheit

Tap water ph 7.81 / ppm 284
High in calcium
Analysis attached

Click to expand...