What's wrong with these leaves?

[Fractalicious]

Using AN 3-part, B-52, Liquid Karma, Cal-Mag (maybe not enough???) I'm using RO water, but I'm only adding half of what is suggested because the label says if I'm using AN 3-part I won't need cal/mag (even when using RO water). I suspect this is incorrect, and any advice would be appreciated.

Running RDWC using LED's. Temp/RH/PH all good.

Check out the picts:

Thank you all! View attachment 2472572View attachment 2472573View attachment 2472574View attachment 2472575View attachment 2472576View attachment 2472577View attachment 2472578View attachment 2472579View attachment 2472580View attachment 2472581View attachment 2472582View attachment 2472583

 

[urgod]

turn off the light and take another picture. YOU DO NEED CALMAG from what i see. you probably dont need to supplement cal-mag if your at 100% of the recommended strength. but from what i see, your probably not even close. so EC and pH please?

 

[Thundercat]

Looks like a ph issue to me.

 

[Fractalicious]

PPM 550-600
RH 50%
temp 75
ph 5.6 - 5.7

The light is off. Ambient light coming from other side of room.

 

[Thundercat]

Not sure what to tell ya, sure looks like nutes may have gotten high, and ph off. what you posted looks like it should be inline. How far away is your light? The 2 pics of the more indica dom. plant look like the tops got light bleached.

 

[GK1]

It looks like cal has locked up due to incorrect ph up add.....are you adding ph up after nutes? If so, thats your problem. Cal precipitates from solution in the form of cal phosphate, thats the cloud you see when adding. If not adding ph up....dunno cuz it looks like a few different issues all combined. Peace.

 

[Chiggachamp]

iron def. forsure!!
also i think ph might be off.

 

[*BUDS]

The label is right you dont need additives its a waste of money and bad for the plants. Just use a good hydro nute like Canna, Dutchfest, Advance and this wont happen. Atm you have cocktail of magic sauces.

 

[Coho]

Companies (generally) spend more working out a nute line than us. Mix and match can have issues. Sorry you have issues..I mess around after it found a good grow then tweak it. Not a tweaker tho..lol

 

[Fractalicious]

Even when using RO water?

I just did a nute change, so I'd rather not have to dump the new res liquid. Would pumping half into another container, then refilling with fresh RO water take care of it?

I'm using Advanced nutes 3-part.

 

[GK1]

If you added pH up or silica or another extremely alkaline product into mixed nutes then you effed yourself and need to dump and start over. The cloud you see is literally ions coming out of solution and precipitating to bottom of tank. Typically is calcium but can also be mag iron et al.
I just noticed your ppm level.....I feed that strength to new cuts in cubes, increasing to as much as 1600 in veg for big plants. If the pH up is an issue, then get a plan to mix it correctly. Raise your ppm to 1000 now and be ready to raise as things get bigger. With properly mixed nutes at 1000 you will see quick turn around. You will be stoked in a week. Peace.

 

[GK1]

Now I just re read and saw DWC. Constant feed your ppm is fine. Sorry I should have re read it first. Are you adding pH up? If so, that's it 100% no doubt kinda thing.

 

[Thundercat]

How often are you checking your res, and PH levels? Its possible that its correct and all fine and dandy when you are filling things, but it only takes a day of feeding for your levels to shift. If they were left un attended for more then a few days that could have been where the PH got screwed up, or your other levels got wacky and messed with the plants.

 

[NWGrower7]

It looks like nitrogen def. Nitrogen always starts at the back of the leaves and mag at the front. And by the looks of one of the fans its starting at the bottom. But I could have that backwards. If its is mag then give her a spray with some ro water and a dash of epsum salt

 

[Fractalicious]

I am adding ph up, but I do that after I mix all nutes in res. Should I be adding ph before nutes? When I add ph, do I need to dilute it in water first - and then add? Or can I pour into res tank directly from bottle?

I check levels several times a day, which is why I can't seem to figure this out.

Thanks for all your responses.

 

[Thundercat]

I've been running my ebb and flow system for 3 years now, and there has been a couple times when I ran across a def. that I couldn't pin point. Thank fully it was fairly late in the cycles, so I just flushed them real well and reset my res.

 

[NWGrower7]

Noo ad nutes then adjust.. Always add micro and mix FIRST Don't water down.. I just use a couple drops at a time until I dial it in.

 

[GK1]

I am adding ph up, but I do that after I mix all nutes in res. Should I be adding ph before nutes? When I add ph, do I need to dilute it in water first - and then add? Or can I pour into res tank directly from bottle?

I check levels several times a day, which is why I can't seem to figure this out.

Thanks for all your responses.

It is happening at mixing friend.....it doesn't matter how many times you check throughout day. Your prob is at mixing and nothing else.

Listen to me bro, THATS your problem. PERIOD. DO NOT add ph up to nutes. If you are seeing the cloud when you pour it in your FUCKING UP. I dont want to big league you but I have a degree in ag science and I've grown indoors for over 20 years. PLEASE PLEASE listen....if you do, no more problem. Ive explained the science....cal precipitating out of soln in the form of cal phophate. My dad had a saying....."you can lead a horse to water and.....sometimes ya gotta shoot em in the head anyway cuz theyre just too dumb to drink!" just playing, but if ya listen you'll be very happy in a week.

Why are you using RO? Unless your water has something in it that shouldnt be RO can be huge headaches. My tap is 7.9 and 240 ppm and I'd rather use it then RO.

For tap water......adjust ph down to 7.0 or less. Make nute addition and check numbers. I dilute my acid down about 100/1 in gallon jug and then I use large graduated syringe form the grow store and measure my acid as if nutes. I know what it takes to hit my final desired ph and add it before nutes. Acid can be added after nutes if its diluted 100/1 however. Feel free to tinker.

For RO water.......its mostly ionically void by nature so its tough to pH RO water without nutes in it first. Never add nutes to water above 7.0. typically, nutes will really slam RO water to a low pH. NEVER add pH up straight to res.....always add the desired amount of pH up to a side container and dilute it before adding to res. How much? The key is to dilute enough so that the "cloud" that you are seeing is non existent. IF YOU SEE A CLOUD when you add, DUMP AND START OVER.

OR

Use your high pH tap water to raise your final pH to desired. No more buying pH up. How sweet does that sound? DOH! In a 5 gal bucket, it took 1000 mls tap water to raise nute soln from 4.9 to 5.5! Easy Peasy.......

Now go fix your problem young Padowan!

 

[Fractalicious]

GK1- Beautiful post, my friend. Thank you so much for taking the time to write all that. Information everyone should know.

I wonder if you could then confirm 2 other great pieces of general knowledge? See 2 attached files:

 

[GK1]

GK1- Beautiful post, my friend. Thank you so much for taking the time to write all that. Information everyone should know.

I wonder if you could then confirm 2 other great pieces of general knowledge? See 2 attached files:View attachment 2477264View attachment 2477265

If your res level is dropping and your ppm level is rising then your plants are using water and not nutes thus concentrating nutes and raising the PPM level. This will typically lower your pH slightly for the same reason....nutes are generally speaking cations or positively charged and as their concentration (ppm) increases the pH will drop. If the swing in nute concentration is dramatic and you see it daily then I would consider backing off a bit on nute level. If it is only occasionally then I would not make changes. simply topping up the res daily can help to limit these swings. ph fluctuation are fairly normal and usually more harm than good is done by chasing them. Compost tea/air stones in res/exudates all will contribute to a rising pH. Make sense?

Are you having issues with root rot? What precautions are you taking to combat it? Your plants immune system is compromised due to the locked out nite soln you've been feeding. You will see an increased immune response very soon as well. They will be healthier all the way around. Yields will increase because yield is about momentum.....plants building it rather than struggling to get what they need. Peace.

edit: not all cations raise pH....but generally speaking you'll see a lower pH with higher EC levels.