crankdoctor
Active Member
In dwc I can’t get passed 1.2 Ec. Most strains around 1 is the sweet spot.
thanks for the tip about getting EC back up after transplant. I followed the loots schedule and the first watering I did was that microbial mix they list. That was yesterday but now I’m unsure what to do next do I give the microbes time to take hold or give them there first feeding. Any help today would be great and very appreciated. ThanksPizza I do add some epsom, but I am using well water that is more Ca. than Mg. if i was using RO water i probably wouldnt add epsom.
Rockymtn The RO and Tap versions are for the pH in the media not the res. unless you are recirculating. It is odd your res. Ph dropped like that with tap. I use well water also and my media pH dropped with Tap alone a good bit, and went up fast with the RO alone so i started alternating the 2, Tap for a few days RO for a few. I mix a res. every day though, so my res. may would drop if i left it a few days with Tap i dont know.
I as well tryed the ro 12-4-16 from 321. Im in Rdwc and don’t go over 1ec. I also had some clawing and n tox. It leveled out for the most part and all looked great otherwise. I also tryed jacks bloom for 2 weeks at flip just to see if It helped.Hey all,
Wondering if anyone has any tips for me. I've been growing beautiful flowers for the last year using automatic watering in coco/perlite and feeding Jacks 321. But I would always at some point get N toxicity (deep green, tips clawing) but no actual nute burn tips. I always keep my EC around 2.0-1.8 depending on the plant. This time around I bought the RO version with 12-5-16 see if I could avoid the N toxicity since the nitrogen is all around lower without using the two part system of Jacks 321. But here I am, 1 month in and one of my plants is showing tip clawing again. EC is around 1.9 right now in the res. I also use a micro mix every two weeks. The only other thing I use is Si. These are all autoflowers by the way, so I'm wondering if these girls are just too sensitive? How else could I reduce the nitrogen with a one part besides lowering the overall EC? Before I would just lower the Part B of CalNit. It's not bad and they outgrow it, but I would like to have one grow with ZERO issues.
Thanks for any tips.
I’m new to jacks 321 my plants are only in coco now about a month. I have been giving 3.6 of A and 2.4 of B no epsoms salt. But I’m starting to see a yellow between the veins of leaves. Any help ??I as well tryed the ro 12-4-16 from 321. Im in Rdwc and don’t go over 1ec. I also had some clawing and n tox. It leveled out for the most part and all looked great otherwise. I also tryed jacks bloom for 2 weeks at flip just to see if It helped.
Started getting som cal issues switched back to the ro. The stretch for me with it was insane. I guess because of the N.ive not had BB ever do it that bad.
Another thing I noticed is they were brittle and I use silica up to a few weeks flower. Plants were healthy and frosty as can get but I won’t use it again throu flower. Is Awsome for veg! Just my 2 cents.
Sounds like Mg deficiency, looks like nothing.I’m new to jacks 321 my plants are only in coco now about a month. I have been giving 3.6 of A and 2.4 of B no epsoms salt. But I’m starting to see a yellow between the veins of leaves. Any help ??
Thank you for the reply. This last feeding I did. I used RO water added 3.6 2.4 and the 1.1 of Epson salt. But the ph was like 4.5 so I added silica after mixing jacks and got the ph up to 5.6 give or take. I read that you add silica before you add jacks. Did I do it backwards? Nothing fell out of solution?? Add how do you read the EC I show a EC Of 1400 is that actually 1.4 ????Sounds like Mg deficiency, looks like nothing.
You may want to reconsider your decision to omit the epsom salt (magnesium sulfate), especially considering you haven't used Jacks 321 before.
If you know how much silica you need to use to have a rez at 5.6 pH, usually best to add it first. You can add it after to adjust pH as well.Thank you for the reply. This last feeding I did. I used RO water added 3.6 2.4 and the 1.1 of Epson salt. But the ph was like 4.5 so I added silica after mixing jacks and got the ph up to 5.6 give or take. I read that you add silica before you add jacks. Did I do it backwards? Nothing fell out of solution?? Add how do you read the EC I show a EC Of 1400 is that actually 1.4 ????
Thanks appreciate the info and replyIf you know how much silica you need to use to have a rez at 5.6 pH, usually best to add it first. You can add it after to adjust pH as well.
I always dilute it way down if I add it to a rez afterwards, like 25ml mixed into 2 liters plain water.
1400 microseimens ( μS ) is equal to 1.4 millisemiens ( mS).
Most users on this platform use mS.
I agree with Billy, I would not omit epsom in coco. In something like Promix that is buffered with dolomite (calcium magnesium carbonate) you
can get away with it.
Thank you. Jacks sent me a feed schedule called ( A and B fast track ) and I was following it Veg called for 3.80 g of a and 2.50 of B Flower called for 5.68 of A and 2.50 of B. That what I was using. But I’m going to follow the original 321 from here on ThanksI agree with above. Mag def. Always rinse and buffer your coco before using with 6.0 water.
Silica should be the first thing to go in your mix and let it sit, agitate for a while before adding nutes. I start at a 1/4 ml then work up till middle of flower. More you add the higher the ph. I’m in Rdwc and less is usualy always better.
When I started in jacks right at flower was when I started yellowing up. Mine was calcium def. If it happens to you just add a bit more part b for cal.
But stay on the recommend path jacks gives you and you should stay in the lines all the way throu. Make sure and add that mag! It’s needed or they wouldn’t say use it. A lot of jacks products need it because there is no sulfer and magnesium has it in it.
You can with good results. I’m sure you’ve looked around and have seen how others mess around with the formula but just use what works for you. Any tweeks you make just write them down so you can look back on for reference. You know how it goes. Some strains like to Eat a lot. Some not so much.Thank you. Jacks sent me a feed schedule called ( A and B fast track ) and I was following it Veg called for 3.80 g of a and 2.50 of B Flower called for 5.68 of A and 2.50 of B. That what I was using. But I’m going to follow the original 321 from here on Thanks
Thanks again. Yea first grow in a few years gave it up because of being diagnosed with cancer and given 6 months to live. But here I am 3 years later. I have to get a better tds and Ppm pen. I bought the cheap viosun the blue one I don’t know to much about EC yet so I just use a chart I found that converts Ppm to EC EITHER THE 500 ,600, or the 700 scaleYou can with good results. I’m sure you’ve looked around and have seen how others mess around with the formula but just use what works for you. Any tweeks you make just write them down so you can look back on for reference. You know how it goes. Some strains like to Eat a lot. Some not so much.
You got this!
Regular 321 formula. They are the jelly Donutz from Humboldt’sNice job they turned out nice for sure. What is that strain. I Hate to hear about your diagnosis. Keep doing what you’re doing brother! Those drs sure can’t tell a Viking when they see one. You and I are both Vikings! I’ve got some crazy stuff going on to and I understand stopping for a while. I had to as well for a bit. Hard to do it when you don’t feel good no mater how much you enjoy growing. It’s my reward. Every part of it. Keeps me going! But there’s days I question is it to much but I just push back harder. I’m in Rdwc so it’s easy at least. Pretty automated. I have aspergilios flavos mold in lungs and there trashed already ha. They said there finding out it’s in weed from bad cures and in dirt and on leaves but not stopping me. I just were a mask out there and keep everything super sanitized. Dr Told me to get rid of all plants even house ones. Nope! It’s my passion. I’m glad you’re back at it. Helps the soul.
Where you using 321 or the 12:14:16 ro in pics you posted. I agree with the meter I would upgrade as soon as you can. A friend gave me a dr meter and it works well and there cheap with a year warranty and they do reward it. Right at end of year mine started acting up and I had a new one within the week! A little slow but so is my blue lab. But I’m slow to so all good.
Just throwing that out there. They are worth it.
Take care of yourself brother. Keep in touch.