Not familiar with the octopot system but I saw “60/40 coco perlite” and sure don’t miss those days.
You don’t mention ph, can’t you do a runoff test?
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Autopot is bottom fed pots in a base with a float feeding system and reservoir so I don’t get run off. I could pull pots and hand feed and check runoff that way. Good call!
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I think you are onto something there! Didn’t put even think of all the ph down I was adding to get that solution down and the P that was being added with this. I think this might be the issue besides all the other stuff. pH Down (Phosphoric Acid) in Hydroponics | Manic Botanix here is an article I just read on Mwd Tech very interesting
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I made a diy self watering planter for my first grows.
60/40, 50/50 coco perlite, it didn’t matter - GN’s Maxi Bloom7gms w/epsom salts 1/8 tsp /gallon
and suffered wild swings in ph mid to late flower.
Flushed more often than I do with the runs, didn’t make a diff.
Distilled water helped some but had to add base to bump ph up.
Still had FG’s and algae.
PITA.
I’ll be watching to see how you figure it out cuz I never did.
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Don’t forget you are adding potassium with the silica too… AGSIL16H is potassium silicate.
Jacks 321 as is with my tap water is working great for small containers and a soiless mix. It comes out between 5.5 and 6.0 and stays stable. I don’t even measure the pH anymore.
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Some Jacks 321 elemental ppm numbers.
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How do I get ahold of one of these spreadsheets? This looks exactly like what @ifish and @cdnBuddy use.
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If you speak nicely to the handsome chap sporting the eye piece on dm , he may be able to help : ) I’m not computer savy but I can chat about it after if you like : )
@anon20530495
Was @GramTorino who showed us the magic of the spreadsheet : )
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I’m not the most savvy myself, but I’m even worse at math! I’m getting things started this evening. Will kick off the journal either tonight or tomorrow. I’ll be talking to you soon. Thanks as always 
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I’m always here : ) hit me up whenever , love to help : ) @anon20530495
Tag me when your up and running
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Yea strange one plant didn’t effect it at all? Being S1’s have a little to do with it I dunno. Drained now back to straight feed and see what turns up. Slowly new growth greening and a lot on one plant two others pretty yellow yet. Thanks for reply
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Thanks! When I was draining and sucking out the trays had some fun looking stuff in there. May need a flu aroo
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10/4 that’s what I did. After thinking through all the bennies I Added I’m pretty certain it was the Silica and all the ph down I had to add to get it back in line. First time I’ve used and if again will be by folia application. Thanks for your input!
Yeah fan under canopy and one on low above all plants a box fan with even coverage. One plant didn’t skip a beat another not so bad and then progresses. I’m thinking these being S1s I’m getting a lot of variation. Thanks for the reply!
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Can’t do run off they are in trays that self water and under a Scrooge net. I did test the little reservoir that plant sits in and was okay. Thanks!
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How are they finally going? Can you share a pic? 
I will the pics prior didn’t really show the yellow color very well. Two are good two not so good well one pretty shitty pics coming. Reminds me I need to add to my non existent grow log.
Okay let’s try this again.
This little lady never skipped a beat.
Group photo.
Worst of the four.
That’s it first go at a scrog learned quite a bit. Girls are starting to cheez it up! So I’ve got that anyway.
30 days flower.
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Thought I shared those to you man I love me some computer.
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