I got ph drops for a fish tank but the lowest it goes is 6.0. I use it to compare to my pen.
What is the 500 scale? Is that the TDS scale.
I know there is Hanna, Eutech and Truncheon PPM charts.
I was trying to help @nefrella with this.
If you can give me a link to something read or watch that explains it that would be awesome. This is not just for @Chronickyle. This is something I’m really trying to crack. Anyone that can help me understand this I would greatly appreciate it.
The whole thing drives me crazy. People cant really compare notes unless you know what scale your meter is calibrated to.
And what is Blue Lab calibrated to? I know they have truncheon pen. Are all there meters truncheon?
But thanks @Chronickyle. I will bring my PPMs down a little more and my ph up a little bit. I want to get droppers to put PH up and down in. Its hard to adjust the PH in 1 gallon of water to get it exactly where you want it.
The solution to these problems is measure in EC. PPM is a calculated number based on the EC, so it’s not reliable to use. EC here in canada is the same as EC in europe or south africa. It just takes a few weeks to get used to EC as a measurement and dump ppm heh heh.
How much has your seedling grown since you lowered the conductivity? One of my two seedlings showed a tiny bit of nutrient def. so I increased the dose by EC .2 made all the difference. Seedlings are the sketchy part it takes me a bit to figured out their dose. These days I go with EC .5 then after initial growth I’ll raise it to 1. Next 1.5 and then 2.0 when they are on the 5 leaf structures. Yours might have grown enough to reach the next stage of nutrient dose.
In ppm speak I’d start at 400 then go up to 800 
That was for those AK47s I was growing.
Thank you for tha welcome @Shaggy450r .Honestly im an Ol’sKooL puppy man. I cant remember when i didnt’ have a dog, or 3. I like to keep 3 large pitbulls. The best dog(for my personal jobs needed worked)(everybody has their own opinions, mine just dont suck).i used to do the warlock dobemans, pit man for life now. As a matter of fact, i judge life by how many dogs you think you got left in ya. I figure this pup and at least 3 more dogs(average life span 10 yrs i guess) i have left in my future. How many dogs you got left in ya… But with the proper math it adds up to 10 more dogs acually will raise before heading back home…ive come to know the most favorite chew toy of all time, all pups are my ankles and arms, which have the scars to prove it. I had one pit almost kill me chewing up my ear and neck at the jugular. Only reason i didnt shoot him was he also chewed up the guy i was beating up. He just wanted to be one of the guys and fight too.
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Sorry bout clogging your thread @LilJonB , and i havent forgot, asap, gimme another min 
It was originally at 800 ppm. Then I started seeing the yellowing spread and the leave curling down so I got concerned. So I dropped it to 600 this morning. Then I read @Shaggy450r post and yours. I dropped it to 350 ppm.
I cant wait to drop the PPM. My pen don’t do EC. I will be getting the Blue Lab combo meter.
So EC is more universal? That would be fantastic.
I hear ya… I have a jacked up hand from getting in between a couple fighting. The head shake did the most damage. I love em tho. My dog was just protecting my kiddos.
No problem man. I still have the ones for you. Just gotta get them out.
I love dogs. I’m allergic to cats. They make me not able to breath.
I have a colly mixed with something else. He’s very smart. But likes to be stubborn. He acts like he don’t know what what I’m asking him to do sometimes. I love him though.
Yes ec is universal. Ec means the same thing here as it does anywhere. From my understanding.
there’s a 500 scale of ppm and a 700 scale
for the 500 scale. 1 ec = 500 ppm
Its a more consistent unit of measurement
Gotcha that makes sense. Thanks.
You have to give the plant a few days to really respond to changes heh heh.
Lol oh. I know. I was asking after the fact to make sure I did the right thing. Hydro is amazing but not that amazing. 
I was thinking the same thing about flipping before the 30 days. I will get her ready tomorrow.
Nice buds. Really frosty!
I wish I would have found that a while ago. I’m about to get 10 stacks next week from all of my back unemployment. I’m going to treat myself to the Blue Lab and some other goodies.
I will be applying this feeding chart for the rest of my grow.
Its a little bit different from what I’m doing now. Found it on Grow Weed Easy.
https://images.app.goo.gl/ULQxVLtzFVZHezTc8
This is the chart I was going working off of before. Some of the ratios are different.
For the yellowing Blueberry Auto. Could the Rapid Rooter plug be retaining to much water? It is not suspended into the water just sitting over the water. I know some folks have a problem with them dampening off.
good luck but remember the charts are guide lines your plants and setup will tell you
their needs 
So true. I’ve been going off of the ratios on the bottle anyway. I haven’t quite cross referenced them yet. See how much of a difference there is. I know the last 3 weeks of bloom it says to take out the FloraGrow altogether. Which led me to believe its not just an advertisment gimmick. Cause I’m sure GH wants me to use as much as I can as fast as I can.
I always just went off the bottles. If someone has any suggestions im all ears.
Coffee time.
half way into a flower cycle i always give the plants a shot of veg fertilizer and a week before the flip
I will feed them flower fertilizer
all the best and be safe
Dequilo