Thanks @[member="jakesterjammin"] for offering to help with this problem. Here is a second thread for my second plant. Here are the notes from my grow (and a sometimes my detailed but incomplete journal). At some point my pH meter lost calibration, and I didn't catch it until last week. It was 6.4 in 7.0 reference solution. Ouch! Sprouted July 10th and I put it under 125w 6500k CFL. July 11 - Growing very well. 8" to 10" from light. July 12 - Watered. (Not sure if it was "plain" distilled or with cal-mag) July 14 - Watered with cal-mag (50% strength). Not enough for runoff. July 16 - Watered and soil was added. Watered w/7.1 pH water w/50% strength cal-mag. Runoff was 6.5. July 19 - Watered w/cal-mag mix. July 21 - Watered w/cal-mag mix. Runoff of 6.5. July 22 - Plant looks amazing. Super lush and green compared to my other plant. July 24 - Again, looks fantastic. Watered w/cal-mag mix. Runoff pH was 6.7. July 26 - Watered w/cal-mag mix. Runoff pH was 6.6. July 28 - Transplanted into 5 gallon pot. Topped plant at 4th node or so. Aug 02 - Had to leave for an emergency. Raised lights, watered well, and used a HydroSpike. Aug 09 - Returned to find the 1/2 gal of water almost gone. Looked excellent. Under the circumstances, I don't see how this is possible. Added an additional CFL for the side/bottom. 150w 5000k CFL for the bottom, 125w 6500k CFL for the top. Aug 13 - Growing well and looks great. No leaf/heat/humidity/bug problems that I can see. Had to reattach carbon scrubber, this plant reeks. Aug 16 - Watered with plain 6.8 pH water - 1/3 gallon or so. Aug 20 - Put into flower today. Using a 150w HPS with lens. Watered with 1/2 gal water. Aug 21 - Plant looks really, really nice. Aug 23 - Watered with a gallon of water, 50% strength cal-mag, and 1/4 strength big bloom. I checked the pH after I mix all nuts in jug (shaking well after each nute is added) and it was 6.5 pH. Aug 26 - Watered with 3/4 gal 7.0 pH distilled water. Plant looks good. Sep 01 - Having leaf issues. Need to check everything again as pH meter had to be re-calibrated from 6.4 pH in 7.0 pH ref solution Damn it. That brings us to today and those "leaf issues". I think I need to flush at this point, no? I could have been over feeding it and also giving it the totally incorrect pH. I caught the issue around the 28th or so, and fixed it, but it's too late, any damage is done. But I hope to have given birth Audrey II. Oh, and as you can see, I've go no problems with the setup itself. Very nice and cool with low humidity (A/C unit and a dehumidifier). And PLEASE save the responses to those that #1) read the above, and #2) that actually know WTF they are talking about. I'd like someone/people to guide me through to the finish, as I won't know what questions to ask until the damage will be done. Thank you all in advance. Picture notes: 1st Pic (BadLeaf1) shows some leaves reverse canoe-ing / tacoing. Not all, but about 6 or so around the entire plant, but focused on one area. GoodLeaf 1 & 2 - just that - great leaves. Forgive the camera. You can make out the two tops. One is more dominate since it was closer to the light the week I was away. Last pics show the set up for this particular plant. If there is any doubt that I "didn't think ahead", he can put that nonsense to rest you can see I have an adequate environment.
OK, read through what was done so far and I stand by what I said with the burn.... Here's why.... Damn near every time you watered them, if they were getting nutrients, or you was just watering, they got Cal/Mag... Cal/Mag is derived from nitrates, which of course increase your nitrate level, and because you hit them with a blast everytime they got any water, the nitrate levels slowly built up in the medium.... Now, we rarely see a calcium deficiency, especially in coco, unless you're watering like 2-3 times a day with a higher perlite mix.. We always see a magnesium deficiency, so we have to get higher levels somehow, thus people's first thought is Cal/Mag... Well that may not work with the nutrient line, because all base nutrient are different, and supply the nitrates in a different way through which elements they're using for cleating.... If your strain(s) are magnesium hogs (as a lot are) and you do not want to increase your nitrate levels, use Epson Salt... Epson Salt is pure magnesium, but derived from sulfur, and not a nitrate... I grow both hydroponic and coco, what I do is switch back and forth from Cal/Mag to Epson Salt... Then also I do not add it with every watering, one or the other is only used with I feed, not when I'm just watering them.... After that good flush, I bet you'll see in improvement within a couple days....
Oh and the "rule of thumb" mix for Epson Salt is 1 teaspoon to 1 gallon of nutrient or water..... I use 1/2 teaspoon per gallon of nutrient and again they only get that when I feed, not when I just water.... That's just pH'ed RO water....
@[member="jakesterjammin"] Ok, so to translate, give it a flush (like I did the plant in the other thread) and then leave it be for a few days? Eventually I will determine if I need Epson Salts, etc? Correct?
@[member="jakesterjammin"] And what do you recommend my ingoing water/nutes pH should be? I'm currently using distilled water, and you're mentioning RO, is there a difference?
Correct. Aug 23 - Watered with a gallon of water, 50% strength cal-mag, and 1/4 strength big bloom. I checked the pH after I mix all nuts in jug (shaking well after each nute is added) and it was 6.5 pH. ^^^^ That's the only time I've given it anything other than distilled water and cal-mag plus.
That's what I remember you saying in the other thread and that's why I thought it was a deficiency. All I saw you fed was cal mag and big bloom.That with the ph issue is what I originally thought it was. You have been feeding alot of cal mag. Mag is best absorbed with a ph above 6 in soil. If your pH was too acidic you could have been locking out mag and building an abundance in the soil. A buildup of mag can lead to K deficiency.Journal- http://d.pr/NLS6
I noticed its a different plant but have the feedings for both been the same? Since the pH meter was off for both plants it might be the same problem. Journal- http://d.pr/NLS6
CalMag+ ingredient are Calcium Nitrate, Magnesium Nitrate. It contains N as well as Fe Journal- http://d.pr/NLS6
Ya there is a difference in RO and tap, to a point, and that point gets closer, or further apart by water source.... If that makes sense??? Here is my current coco when they were 7 days old, and then again 15 days later.... View attachment 1251356 View attachment 1251357 Now I'm running hydroton in with my coco/perlite to get better drainage, so these were watered once a day, and currently 30 days into flowering, and getting 2 times a day.... I use Heavy 16 Grow, Voodoo Juice, and Organic B1... First 2 weeks (weeks of the pics) I fed them at 600ppm first week, then 800ppm second week... Every other "feeding" I used Epson Salt or Cal/Mag, and again I switch that back and forth... I feed the plants when the runoff is around 200ppm below my what I've been feeding.... So like if I'm feeding an 800ppm, and then water, get back 700-800ppm, next time is water again, on the other hand if I water and get back around 600ppm, next watering is a feeding with nutrients.... Of course you want to water less because you're not draining as fast as mine does.... But you want to watch that runoff, because that's going to tell you how hot that coco is, so you know, do I water or do I feed... Then my feeding pH is always set to a 5.7 or 5.8, and I'll let a 5.9 ride if my runoff is higher than I want.. The runoff I'm looking for a 6.3 to 6.5...... That's how I do mine, and I get great results as I'm sure you've seen.....
Ok, just checking - no offense meant. Watering is similar, but the other plant looks nasty, and started to by 3 weeks. This plant, shy of the damaged leaves, looks great.
No offense meant here either...just trying to figure this out. After that last thread, we all need to have a healthy productive discussion to sort this out. Journal- http://d.pr/NLS6