Still learning how to read my plants, mag def?

I use RO water so thats what im thinking, but I also stupidly let my plants sit in water at the beginning of veg till I got proper saucers. I know, I know, im a horrible parent . I PH to 6.7 for them and feed 2.5 ml of dynagro magpro. So what do you guys think? I have tried lowering the feed, lowering the Magpro, increasing the feed, increasing the magpro, and I am stumped at this point. You can see the red stems which leads me to mag but when I look up pictures of the symptoms it doesn't quite look like a mag def. Thank you soo much for your help, it is really appreciated!

After about week three i always add a little calmag up to about two weeks before chop. Looks like that may be the issue. It doesnt look much like calcium def, but it does look like mag def a little, its not textbook mag def in appearance but its close. Or it could be over feeding. If the top leaves are curled down, or you have lots of burnt tips, its over feeding.

Are the leaves like this all over the plant or in just this one spot?

Thanks for the replies Alien and Diabolical!

Alien: I do have burnt tips from when I increased the feed, and since this is my first run with dynagro im thinking that could definatly be the issue. Still getting used to how concentrated this is. Currently have these girls at .5 EC The upper leaves on my lemon are showing a bit of nitrogen toxicity, so that seems in line with overfeeding!

Diabolical: At this point there are leaves like this in different stages all over the plants, my other GG4 does have localized spots like this which I assumed was since its too close to the cold air on my AC. I will add pics of the entire plants once the lights turn on later tonight

Old leaves Represent old issues.

New Leaves current issues.

focus your energy on assessing the now.

The new Growth.

So if this is an overfeeding issue, which totally is not out of the question since this is my first run with dynagro and im still getting used to the nutes, what would be the best course of action? Im thinking lowering the EC to .3-.4 but keeping the same ml of magpro per gallon? I am going to feed my other girls later tonight and ph the runoff to see if maybe the mag is being locked out, because I feel that 2.5 ml of magpro per gallon should be plenty, even in RO. TBH I feel bad even letting it get this bad before asking for help but I was determined to read my plants and attempt to fix the issue on my own My current dynagro feeding schedule is:

2.5 ml of protekt
.25 ml of grow
.25 ml of bloom
2.5 ml of magpro

Todd: Thanks for the reply! So at this point even if I fix the issue the old leaves will still show symptoms? Im not expecting them to bounce back to how they were before, but if it progresses on those same leaves is that not an issue? I was under the impression that it would at least halt it on the growth that is currently affected.

ATooDope said:

So if this is an overfeeding issue, which totally is not out of the question since this is my first run with dynagro and im still getting used to the nutes, what would be the best course of action? Im thinking lowering the EC to .3-.4 but keeping the same ml of magpro per gallon? I am going to feed my other girls later tonight and ph the runoff to see if maybe the mag is being locked out, because I feel that 2.5 ml of magpro per gallon should be plenty, even in RO. TBH I feel bad even letting it get this bad before asking for help but I was determined to read my plants and attempt to fix the issue on my own My current dynagro feeding schedule is:

2.5 ml of protekt
.25 ml of grow
.25 ml of bloom
2.5 ml of magpro

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There is Zero issue now.

The past damage is done and gone.

Continue as if your leaves are perfect.

Old leaves do not improve.

change your tank and run the required PH and EC as normal.

and watch the new growth.

Todd: Thank you for the advice! I currently run it in sunshine mix so it will take a little bit longer to "right the ship" but I will be obsessively watching the new growth at this point and taking pictures so that I can reference them day by day

ATooDope said:

Todd: Thank you for the advice! I currently run it in sunshine mix so it will take a little bit longer to "right the ship" but I will be obsessively watching the new growth at this point and taking pictures so that I can reference them day by day

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if your new growth is dark green and healthy, your on the right track, just be sure to regenerate a big new canopy of healthy leaves before moving to 12/12 i.e flowering.

arhh..bugger
....I see your in flowering, damage is done and yield is screwed sorry.. you can make mistakes in veg and recover, but damage to leaves in mid flower is game over.

just keep with you bloom program and harvest what you can now and learn from it. , healthy fan leaves are the drivers on big buds.

ATooDope said:

Thanks for the replies Alien and Diabolical!

Alien: I do have burnt tips from when I increased the feed, and since this is my first run with dynagro im thinking that could definatly be the issue. Still getting used to how concentrated this is. Currently have these girls at .5 EC The upper leaves on my lemon are showing a bit of nitrogen toxicity, so that seems in line with overfeeding!

Diabolical: At this point there are leaves like this in different stages all over the plants, my other GG4 does have localized spots like this which I assumed was since its too close to the cold air on my AC. I will add pics of the entire plants once the lights turn on later tonight

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So you knew what I was getting at i think its more wind/fan damage and maybr a mild over dose on the feed. Redirect fans. And now you know where to back off a bit on the feed.

A little insight.

Magnesium is alkaline

Magnesium Supplements are usually bonded with Calcium

Calcium Is alkaline.

Your PH is 6.7? WTF


If your hydro your PH needs to be 5.8 -6.2

The way I see it, you have a already too alkaline PH even for soil and you added alkaline minerals.

You locked out your other nutrients and ended up here.

Wind Burn My arse.

Todd: Man that is not what I wanted to hear, but probably what I needed to hear. Its not bad to the point where I need to chop right now, but if it gets to about 50% of the leaves like this then I will do what I have to do. This run was more of a "proof of concept" for me since this is my first run with dynagro, my tent, and my living situation. They started off so well! If only the person growing them was more diligent

Diabolical: I did adjust after I lost a couple branches of my lemon OG, and it seems to be corrected now(At least the fan damage). I am still in a "setting up" phase for this tent so I will be making serious changes for the next run. If only I had thought ahead and not started this during the summer

Todd: I am in sunshine mix which I believe requires soil PH levels, correct me if I am wrong however

ATooDope said:

Todd: I am in sunshine mix which I believe requires soil PH levels, correct me if I am wrong however

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If Sunshine mix is potting mix?? you do not need to change the PH or even measure it or use RO water.

todd86 said:

If Sunshine mix is potting mix?? you do not need to change the PH or even measure it or use RO water.

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This is what I am currently using. It is a potting soil unless I am mistaken, but not like fox farms or other in that mold. Essentially a blank slate. I use RO water to not kill off the beneficial bacteria due to the chlorine in my tap(which comes out at 260 ppms)

ATooDope said:

This is what I am currently using. It is a potting soil unless I am mistaken, but not like fox farms or other in that mold. Essentially a blank slate. I use RO water to not kill off the beneficial bacteria due to the chlorine in my tap(which comes out at 260 ppms)

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Right ok , well your leaf damage isn't too bad , and we cant change old leaf damage, and we cant grow new leaves in flower.

Ride it out to harvest, and if you need help in the next grow, you know where to find me.

Next time just amend with a little lime and don't worry about pH.

I think its just a little burn from the feed.

What would really help is a pic in blue or natural light.

Todd: Thank you soo much for the help! I really appreciate the advice.

White: Ill be adding new pics to this thread later tonight(around 9pm PST), the HPS does skew the true colors so these pictures are a tad misleading.

Also for some of you more tech savy growers, my instagram is strangeclouds_ca and you can see my plants with the lights off for a better view of them. Keep in mind flash is on and the middle of the plants cant really be seen.