Ok sounds good. On my next feed I will keep EC around 1.0. Since my tap is coming in at .5, I imagine I would have to really lower my dosages for BB and TB.
Read that 6.5 was good for soil, rather 6.3-6.8 so I was staying in that range the whole grow. I did end up having runoff that crept low PH few weeks ago, around high 5s. I have since top dressed with dolomite lime and it seems to have brought it back up, but I will start watering at a higher...
I've been trying to follow these charts another kind member of this forum has shared with me. Where do you get your EC ranges from? Is it just from experience?
My tap comes in at .5 EC, so I think if I remove GB now at this stage and just keep BB and TB I should be able to reach a lower EC...
Update: Got my TDS/EC pen and I have made some measurements and observations. Here's where I'm at currently @ week 9 from seed, roughly week 6 in flower.
First, here's the feed I applied (FF Trio):
15mL BB/gallon
5mL GB/gallon
7.5mL TB/gallon
Input PH 6.5
Input EC 2.5
Output PH 6.3...
My medium is happy frog, which is milder than ocean forest so you may be onto something.
I got my pen coming in tomorrow which coincides with my water schedule so I'll keep y'all posted.
Wouldn't you want lower ppm coming out? Runoff ppm should be lower vs input ppm to signify the roots are taking in nutrients? I could be misunderstanding this but I was of the impression the roots eat so less should be running off.
Hey man, glad to see you've resolved your issue. Question for you though: could you explain in a bit more detail as to how you arrived to the conclusion that it was N and K deficiency? I'm asking because I am experiencing similar symptoms and I was under the impression I have a ph and/or...
After doing more research into EC/TDS measuring
(Don't know why I didn't research this more to begin with because now it's a "duh" moment) I ordered the bluelab EC/TDS pen. I imagine if I test the runoff of the sickly one I'll have a better picture of what I'm dealing with.
Like @goofy81...
So if I were to get a TDS/EC measuring pen, I imagine I SHOULD expect to see lower EC in my runoff than input. If I see higher, then likely I have massive salt buildup in my medium that's running off with each watering, causing a higher reading.
In an ideal situation, my runoff PH should...
Yeah I noticed tip burn early on when I started to feed so I slowed down on the feeding strength, but nothing was changing. This is my third grow and much better than my previous two, but I'm still learning.
I'm reading up on EC and how to measure it properly. I bought the blue lab PH pen...
Hi everyone, been getting a lot of good info from this forum and hope to get some good insight to what my issue could be.
Medium is FFHF
3 gallon fabric pots
Temps 78-84F
RH 35-45%
Week 9 from seed, about 6 weeks since preflower
Strain is (likely) GSC auto; I say likely because I don't have...
Yup, fed with 1 tbsp epsom salt per gallon of water a couple of days ago. My understanding is these leaves are not going to recover but I should see deficiency stop. Any idea how long it takes to see progress? I think I read somewhere Mg deficiency exists for 4-6 weeks before becoming...
Take a look at my plant. This really looks like all the photos I see of magnesium deficiency from my research.
It's interesting that you mention N deficiency also, because I'm seeing this deficiency mostly on the one that I LST trained the most and seemed to stretch the most during preflower...