Ditto here, I let it swing through a range but my pH drops over time rather than rising. 
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So here are plants today looks like there are changes to 2 of them. They are all getting same amount of solution
pH has been managed around 5.8-6.3
Ppm is 480 now but I’m not seeing any drop in ppm. Do I worry plants aren’t getting enough or are they too small to take in a lot of nutrients??
Temp 68 room and humidity in 50s.
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All looks good! Don’t sweat that last leaf tip either they look happy 
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What he said. 
PPM’s should remain about the same as the water level goes down (roughly).
They are still young. They’ll grow.
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Has your pH fluctuated?
Minimally. I have adjusted it the past 2 days but today it’s maintaining at about 6.3
@pillsbury @PharmerBob @HappyHydroGrower @neofirebird @Nicky
Okay so I was able to do another reservoir change with y’all’s advice.
Added silica and got pH of 11 and ppm 40
Added pH down to 6.1 ppm 49
Added calmag pH 6 ppm 280
Added nutrients pH 5.7 and ppm 420
Feeding the girls now…
Hopefully this will help them. Still worried ! Maybe over next few days there will be improvement.
What strength of silica is recommended. I used a bit above mild strength ? And nutrients I’m doing at the full dose recommended for seedling
I don’t use silica until flower, the burnt growth will never return. Look to new growth to see change your looking for
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I use silica at your growth I’d recommend 2ml per gallon.
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So did I over water?
Finally put timer on schedule but since can only do 15 min increments it’s got more than normal. Got 2 watering and just took break from water to them looking like this all sad. And pH is 6.1 up from 5.8 where it stayed for the few hours I kept checking on it.
In looking closer at your pics in confused. Looks like grow bags with hydroton all sitting together in a big tub with some solution.?? I’ve only done DWC bucket hydro, not sure what’s up with this method. 
I get the roots can reach moisture but unless you’ve got airated solution they’re sitting in with an air gap. I can see where this would cause troubles at this point - unless I’m really high and missed something 
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The table gets flooded periodically then drains so roots are not constantly sitting in solution.
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Yeah I recall that part but do the roots just sit in hydroton in those grow bags? I would think you’d be limited by the roots that way?
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I don’t know any better lol it just seemed to have worked. Are you saying there should be more space for roots?
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No not more space for roots that looks surprisingly good to me. My roots only go through a couple inches of hydroton then into about three gallons of airated solution the roots will and can get bigger with the extra room.
This is a ten week old WW auto.
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I will be trying that method soon too. Nice plants! Mine grew so tall I gotta try and keep them lower this round.
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Incorporate some LST training that’ll help with height and stretch
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