I think I've run into the exact same thing. With hps I ran around 75F/55RH. With these plants I've tried to keep a 1.0-1.2 vpd running 80-82F 65-70RH.A big reason why you see such drastically different results for different people is because a lot comes down to lighting intensity and VPD. Those PPMs might be perfect for one person, but they'll fry another person's plants. I had to increase my ppms when I switched to LED, and again when I started running higher temps/rh.
So I've been vegging with Jack's and the plants love it. But then keep throwing deficiencies randomly. But the new growth looks great. I don't now what to make of it. Switching to floraflex for flower and hope they straighten out. But it's strange I've been vegging them for like a month like this on Jack's and they can't get their act together. I am using the Jacks Tap. phong to 5.8. Let the res drift up to 6.2 before correcting down again. My tap water starts at 0.7 to 0.8EC and I add jacks up to 1.4EC usually. Feed every hour for 2 minutes on 1/2gph emitters. 12 times during the light cycle and then off for lights off.I hope it works out for you.
I for one am done with Jack's.
Just a few days into flower and....
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I made no changes to the feed so I'm stumped. Issues with mobile nutrients, but they're so different between the plants its hard to nail down the cause.
The tops look great still, but I don't want to push the issues any further.
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I've been doing some research and have found others say they've had the same issues with Jack's. They love it, but can never seem to get dialed in on it.
For now I'm going back to the GH trio following their new schedule @ 1.2ec with another .2ec of Calimagic. I'm going to try floating around there for now @ 1.4 total and see how things progress. Possibly bump up to 1.7 if I see issues.
I am really frustrated though that Jack's isn't working out....
When it is working it makes some pretty plants.
Those are the same issues I was seeing running 1.4EC with RO water. Nothing would clear up until I hit 2.0EC.So I've been vegging with Jack's and the plants love it. But then keep throwing deficiencies randomly. But the new growth looks great. I don't now what to make of it. Switching to floraflex for flower and hope they straighten out. But it's strange I've been vegging them for like a month like this on Jack's and they can't get their act together. I am using the Jacks Tap. phong to 5.8. Let the res drift up to 6.2 before correcting down again. My tap water starts at 0.7 to 0.8EC and I add jacks up to 1.4EC usually. Feed every hour for 2 minutes on 1/2gph emitters. 12 times during the light cycle and then off for lights off.
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I had those issues when i used Jacks Tap version.. i ended up going back to normal jacks. Other have had better results though.. I would start the ph at 6.0 and let it drift to 6.5ish then adjust.So I've been vegging with Jack's and the plants love it. But then keep throwing deficiencies randomly. But the new growth looks great. I don't now what to make of it. Switching to floraflex for flower and hope they straighten out. But it's strange I've been vegging them for like a month like this on Jack's and they can't get their act together. I am using the Jacks Tap. phong to 5.8. Let the res drift up to 6.2 before correcting down again. My tap water starts at 0.7 to 0.8EC and I add jacks up to 1.4EC usually. Feed every hour for 2 minutes on 1/2gph emitters. 12 times during the light cycle and then off for lights off.
holy crap! that's high to start with.My tap water starts at 0.7 to 0.8EC
I i was scared to do high EC just upped to 2.0.Those are the same issues I was seeing running 1.4EC with RO water. Nothing would clear up until I hit 2.0EC.
I would suggest raising your EC way up.
mg deficiency every fucking timeholy crap! that's high to start with.
which did you get first: the tip burn or the Mg deficiency?
have you ever tried foliar with epsom in veg? or just adding 1gram of epsom per gal?mg deficiency every fucking time
have you ever contacted JR peters? i sent in my water analysis to make sure nothing in my well water would interfere with either the Tap or RO formula. then they got back to me.I i was scared to do high EC just upped to 2.0.
mg deficiency every fucking time
Yes I do foliar Epsom. But it annoys me that I can't just get a nutrient that has everything. Lol. Also I'll try adding Epsom to res. But the tap says it has some in it.have you ever contacted JR peters? i sent in my water analysis to make sure nothing in my well water would interfere with either the Tap or RO formula. then they got back to me.
i wonder if something in high quantities in your source water is interfering with Mg uptake??
the good thing about epsom is 1. super cheap and 2. the sulfur in it for smells in bloom. but i get your point.Yes I do foliar Epsom. But it annoys me that I can't just get a nutrient that has everything. Lol. Also I'll try adding Epsom to res. But the tap says it has some in it.
Not adding mag. Because the tap version I use says it has some. And then I assume my tap water already has some cuz the EC is so high.If you aren't adding mag, i would expect a mag deficiency.. Unless i missed somewhere in this thread that you are adding mag? it's early..
Yup... that's the same issue i had with jacks tap formula.. i even emailed jacks and they told me that it should be fine.. it wasn't Add some mag and be happy.. That's also why i went back to normal jacks.. I will say though the tap version dissolved crazy fast.Not adding mag. Because the tap version I use says it has some. And then I assume my tap water already has some cuz the EC is so high.
It's also very forgiving. I run 2 grams per gallon on some of my mixes with no ill effects whatsoever. There is another guy in the forum who runs it much higher even than that.the good thing about epsom is 1. super cheap and 2. the sulfur in it for smells in bloom. but i get your point.