Who can help diagnose my issue?

[ddxsinxcosxdx]

Initial water - 2-5 ppm (Got my RO machine in right finally )

PBPG - 590-600 ppm
PBPB - 750-760 ppm

Directions followed as described by CGI

[CanGroIt]

Now with this info, you can now divide/multiply your ml per gallon to build nute tolerance....

So to have a nutrient balanced recipe mix and build nute tolerance, you look at your ppms per gallon and divide/multiply to get your ppms to the desired ppm....

We know that 2.5ml of each CM and LK give us a ppm of 180 or so per gallon.... Now that we know that "X"ml per gallon of PBPG gives us roughly 600ppms, we would have to divide "X" by 4 to get our desired ppm of 3-400 for week 2 of veg....

A nutrient balanced nute recipe will include, macro nutes, N-nitrogen, P-phosphorus, K-potassium and micro nutes which are found in your cal mag and liquid K.... Macro nutes will always be given at higher doses, which is why they are macro....and your micros at smaller doses....

So, for week 2 of veg, your recipe should be 1/4 of "X" and 2.5ml of each CM and LK....with this, your ppms should be between 3-400.... Then add from there each week....

Hope this helps.....

BTW, at what ml's did you use per gal to reach those ppm's??? For the PBPG & PBPB....

55gal drum with RO....lucky....

CGI::::::

[ddxsinxcosxdx]

In this case X is 5ml per gallon, so that means 1.25 ml. If I remember from earlier correctly, we should be using more PBPG or PBPB than CM or LK... how would you adjust this?

The RO machine wasen't bad, probably $300 total, and that puts the drum next to my work bench thanks to an extra long hose.

Im gonna go give them plain tap water 1 last time before I start feeding them again. Baised on what I understand, I should give fertilizer in water once a week for a week or so before switching to every watering, right?

THanks again

[pixelklo]

So, week in update:

Affected plants look like they lost a few of the leaves that were showing burn, some were saved and most remained unaffected.

Im about to go give a watering (just water) and am still working on my RO machine. (its in, but it leaks too much to leave it on long enough to get my 55 gallon drum full)

PPM of my water as it sits right now is 120-125, what I have gotten out of the RO machine is floating between 1 and 2... much better.

I still dont think I have an understanding of how to use the PPMs that are available to me for each feeding. (What ratio of each nute should I use to make the feeding best for the plant?)

Anyone know anywhere good that I can learn more about the topic?

Why is your RO system leaking? if it's leaking from the couplings (where the tube meets the holes) then just push the tube in as hard as you can. if it's a canister leaking, then you may want to check if you accidently crossthreaded it when replacing or installing it. you may be able to unscrew it and get it on correctly, but you may have buggered it up so much that it needs to be replaced.

[CanGroIt]

In this case X is 5ml per gallon, so that means 1.25 ml. If I remember from earlier correctly, we should be using more PBPG or PBPB than CM or LK... how would you adjust this?

The RO machine wasen't bad, probably $300 total, and that puts the drum next to my work bench thanks to an extra long hose.

Im gonna go give them plain tap water 1 last time before I start feeding them again. Baised on what I understand, I should give fertilizer in water once a week for a week or so before switching to every watering, right?

THanks again

No need to adjust....

(let's stick to per gal for now)
5ml per gallon of PBPG = 590 - 600ppm
5 ml per gallon of CM = 225ppm
5ml per gallon of LK = 70ppm

So after looking at what the ppms are for each different bottle, we can see that even though we are giving the exact same number of milliliters, the ppms differ....so this is why I say that your N-P-K will always be given at higher doses....now ya get it???

Now let's add those numbers to see what we get.... 895ppm is what we would have if we place 5ml of each of those in a gallon of RO water.... But we want to be at 300ppm per gallon on week 2 of veg, so we divide.... Then once into flower you simply replace the PBPG with PBPB.... Just remember not to give more than 5ml per gallon of CM, anytime.... It's up to you if you want to give more than 5ml per gal of LK at any given time....the recommendations say to do so, so that one is up to you....

You don't want to give ferts with every watering....give plain RO water between feedings....

pH is pretty important too....you got that covered???

CGI::::::

[ddxsinxcosxdx]

So, at the end of flowering, when the ppm ranges increase, I just add the appropriate amount of PBPB?

PH I check every week or so, water comes in about 7-7.2 and run off is 6.4-6.6. I just use dipsticks which I hate, I need to get a PH meter that has a digital read out, I always worry that I'm not reading the test strips right.

[CanGroIt]

So, at the end of flowering, when the ppm ranges increase, I just add the appropriate amount of PBPB?

PH I check every week or so, water comes in about 7-7.2 and run off is 6.4-6.6. I just use dipsticks which I hate, I need to get a PH meter that has a digital read out, I always worry that I'm not reading the test strips right.

Not sure if I understand your question completely.... But the time that you want to switch from PBPG to the PBPB is within the first two weeks of flower.... So if you were using 5ml of PBPG on the last week of veg, give them 5ml of PBPB when switching over, after a ppm reading adjust to suit.... Then raise from there to get the desired ppm....

Well at least you have some way of checking pH....cool....

CGI::::::

[ddxsinxcosxdx]

I think that was the answer to my question, but I am going to re-ask in a different way, just to make sure:

In week 10 the given nute schedule states 1100-1200ppm
In week 11 the given nute schedule states 1200-1300ppm

For this scenario I will assume that LK will be held constant at 5ml, and as we discussed, CM will max out at 5ml, thus will also be constant at 5ml per gallon.

To adjust the ppm upwards of roughly 100 ppm, I would simply add 100 ppm of PBPB, right?

I think I am going to break down and get a digital readout meter, at this point I've invested enough that it would be stupid for me not to have one, just incase I really do suck at reading the color charts.

Is the simple tester here HTG Supply - Checker pH Tester just as worth getting as the basic ppm meter was?

if not, any advise on a brand or type to get?


I really do appreciate all your help. I'm sure that as long as I can follow your advise I will get much better. I just wish summer would end so that heat wasen't such a pain in the ass, lol!

So, if you had to describe what a "routine" (if there is such a thing) watering went like, how would you describe it? If I were watching you do your basic feeding, what would you do step by step?

Also, any thoughts on LED lights? These summer temps are making me think that maybe I should start thinking about upgrading to those by next summer. Sure would help the electricity bills too.

[CanGroIt]

My bad, I completely missed this post until today.... (got a great strain going :jointsmile

How they looking??? They should have fully recovered by now....

Yes, you are correct.... If you cap the LK and CM at 5ml per gal each, you would add another 100ppm of PBPB so as to increase the nutrient level to the wanted ppm for that given week:thumbsup:....

Color charts are not very effective methods when attempting to measure anything, IMO.... Digital meters are very good investments that last if properly taken care of.... The HTG checker you linked is a basic pH meter that works, I have one....

I don't mind helping you understand this.... Right now you are using 3 bottles.... Once you learn more, you will probably get more.... For now, learn how different levels of nitrogen, phosphorus and potassium effect plant growth at different stages.... That way you can tweak your recipe later....

Trust me, I know what you mean about summer temps kickin ass.... I'm just fortunate to not have to worry about that anymore.... IMO, a portable A/C would be a better investment over LED's....but that is just my opinion....and I base this off of being able to be reimbursed for growing costs....

My routine is one that I DO NOT recommend anyone try until they are ready to suffer the consequences of over ferting from not doing it properly....and because my routine is specific to the nutrients/boosters/vitamins that I use.... Personally, I feed feed water.... When I feel like I'm pushing them too far I will feed water water for a week, then resume the feed feed water.... I use 2.5l containers for flower and only give them 4oz of feed/water every 24hr period.... One thing I make sure to do is flush right before transplanting into flower and flush again on day 28 of flower, and of course the final flush 10 days before harvest.... So for me, I don't just feed once per week....it doesn't matter what week it is, I feed feed water feed feed water feed feed water....this is only during flower though.... While in veg, it's the opposite, I water water feed, on a soil needing moisture basis....not daily like flower.... And typically, I won't start watering everyday in flower until about the third or fourth week....before then, the pots hold moisture for two to three days.... But this is just what I found to work for me....

Glad I can help....

CGI::::::

[ddxsinxcosxdx]

I got off the forum for myself a bit.

Ive been doing feed water water consistently now. Got a small mite issue that I had to fix,but I think that's done now.

I have a portable unit that I run but my 4x 600w HPS lights seem to be kicking its ass. Now that its getting cooler here, its doing better.

I Think im gonna do air cooled lights come spring (our winters are cold so im gonna take advantage of the heat while I can)

Plants are looking a lot better.

Im finding that the numbers I came up with just doing each nute in water arent scaling up well. Im doing 5ml calmag, 5 ml LK (giving an extra ml every 2 weeks) and then making up the rest with PBPB or PBPG as necessary. What I am finding is that ppm of 5ml of pbpb is not the same as twice the ppm for 10ml of pbpb, any thoughts?

I want to get more accurate with my PH now, except I hate my meter, I seem to have to recalibrate it every time I use it. Any ideas why that would be?

Usually the water I put in is about 7, and coming out its about 6.2-6.3.... so that seems right, but I still dont trust my meter since I have to re-calibrate it every time I use it.