• Ali Bongo, Head Shop UK, buy best bong UK, Percys Grow Room
Notifications
Clear all

Help with identifying deficiency or excess

Page 2 / 4

monkeydo
100 Likes
250 Likes
500 Likes
Patreon
1K Likes
Diary Writer
Student
2.5K Likes
Instagram Admin
Pangolin Hunter
5K Likes
Plant of the Month Winner
Completed Diary
Stoner Movie Club
USA
Veteran
Points: 51963
Posts: 2912
(@monkeydo)
Valencene
Joined: 1 year ago

My method for balancing EC is to start as a seedling at 1/4 recommended rate of your nutes, cal/mag and base nutes. Measure the EC of the feed and then measure the EC of the runoff. If the two numbers are within 0.200 of each other you are good. If it’s too low increase the input feed by 0.200 on the next feeding and check again. If it’s too high decrease by 0.200. Make sure to give your plants a couple days to stabilize before changing the feed again as it takes them a bit to adjust themselves. There really isn’t a magic number to begin as each strain will feed differently.

Reply
meisme
(@meisme)
Joined: 2 months ago

100 Likes
250 Likes
Percy Grower
Points: 749
Eucalipto
Posts: 55
Posted by: @monkeydo

My method for balancing EC is to start as a seedling at 1/4 recommended rate of your nutes, cal/mag and base nutes. Measure the EC of the feed and then measure the EC of the runoff. If the two numbers are within 0.200 of each other you are good. If it’s too low increase the input feed by 0.200 on the next feeding and check again. If it’s too high decrease by 0.200. Make sure to give your plants a couple days to stabilize before changing the feed again as it takes them a bit to adjust themselves. There really isn’t a magic number to begin as each strain will feed differently.

Hey @monkeydo , So ive hit a small conflict.

I have doubled buffered my cheap coco for a fresh grow by cleaning it and then submerging it in a tap water + calMag solution EC approximating 2, for 2 shifts of 8-10hrs. 

Prior to sowing the seed now, I wet the grow bag with RO 2lts apprx of CalMag + A+B nutes for an EC of bout 0.6 + phDown for a pH of 5.8.

Runoff EC is still 1.8 and pH @ 6.4
Do i just go with this and the substrate EC will balance itself out, or do i run more low EC + pH solution through it ?

Please advise.

 

Best!

 

Reply
meisme
100 Likes
250 Likes
Percy Grower
Points: 749
Posts: 55
Topic starter
(@meisme)
Eucalipto
Joined: 2 months ago

Hey folks!

Just a quick update before lights out for the day. Plants are looking healthy and growth is good! Thanks a ton Monkey! Pics attached.

Next is to get to work on the training. Maybe start a new seed from scratch ? I have the space and the light.

1

Cheers!

 

Reply
Woolie
(@woolieback)
Joined: 8 months ago

100 Likes
250 Likes
Patreon
500 Likes
1K Likes
Grow Off Diary
Member of the Month
Diary Writer
2.5K Likes
Stoner Movie Club
Wales
5K Likes
Respected Member
Points: 17030
Linalool
Posts: 956

@meisme it looks great , monkey knows his feed I learned something just by reading my mate , if i knew exactly i would have commented ,But too many cooks spoil the broth! you had the head chef Jackpot 😉

Reply
meisme
(@meisme)
Joined: 2 months ago

100 Likes
250 Likes
Percy Grower
Points: 749
Eucalipto
Posts: 55
Posted by: @woolieback

@meisme it looks great , monkey knows his feed I learned something just by reading my mate , if i knew exactly i would have commented ,But too many cooks spoil the broth! you had the head chef Jackpot 😉

My man! Thanks a ton bro! 

Mate please do not hesitate! Im here to learn and im sure there are a multitude of ways to grow. 

Reply
Woolie
(@woolieback)
Joined: 8 months ago

100 Likes
250 Likes
Patreon
500 Likes
1K Likes
Grow Off Diary
Member of the Month
Diary Writer
2.5K Likes
Stoner Movie Club
Wales
5K Likes
Respected Member
Points: 17030
Linalool
Posts: 956

@meisme in your place bro id turn to monkeydo so you were in the best possible hands 😉

Reply
monkeydo
100 Likes
250 Likes
500 Likes
Patreon
1K Likes
Diary Writer
Student
2.5K Likes
Instagram Admin
Pangolin Hunter
5K Likes
Plant of the Month Winner
Completed Diary
Stoner Movie Club
USA
Veteran
Points: 51963
Posts: 2912
(@monkeydo)
Valencene
Joined: 1 year ago

I can only tell you how I approach this and why I do it. If it’s available to me I prefer to buffer with rainwater. With rainwater my background EC is almost nonexistent so I’m more comfortable with it over my tap water which is really bad for hydroponics, my tap water background EC 550-600. My coco brick is hydrated and then washed to remove most of the super fine stuff, the coarse stuff is the best. Mix cal/mag at the recommended rate on the label and soak the coco overnight. Drain and then I mini flush the coco because the seedling won’t appreciate the high EC in the coco from cal mag. Last step is to mix a solution of just base nutes only at 1/4 recommended rate and water the empty pot to put some nutrients in the media and then plant the seed. In the early seedling phase I don’t usually monitor EC overly closely and more to prefer keeping the feed mostly based on root growth for the first week or two. Push the root feed like Rhizotonic or Kangaroors heavily first and it will help get them a stronger beginning. Around the second week I start working on EC in and out.
The step it looks like you are missing is a mini freshwater flush after you buffer. Mini flush in that for a 10 liter pot you only need 8-10 liters to remove some of the excess cal/mag and that should lower that 1.8 EC in the coco and make the seedling happier. Hope this helps in some way

Reply
meisme
(@meisme)
Joined: 2 months ago

100 Likes
250 Likes
Percy Grower
Points: 749
Eucalipto
Posts: 55
Posted by: @monkeydo

The step it looks like you are missing is a mini freshwater flush after you buffer. Mini flush in that for a 10 liter pot you only need 8-10 liters to remove some of the excess cal/mag and that should lower that 1.8 EC in the coco and make the seedling happier. Hope this helps in some way

This. Thanks. Im using RO water (needs a filter change)  but have my BG EC under control with the fertigation.

Reply
meisme
100 Likes
250 Likes
Percy Grower
Points: 749
Posts: 55
Topic starter
(@meisme)
Eucalipto
Joined: 2 months ago

Hey folks! Who around here do I turn to for help with DIY nutes ?

Thanks a ton!

Reply
meisme
100 Likes
250 Likes
Percy Grower
Points: 749
Posts: 55
Topic starter
(@meisme)
Eucalipto
Joined: 2 months ago

No one! He ho! Smile  

Ok. i will ask here.

I have now encountered this problem every time I have mixed a certain recipes Concentrate A.

For a 100x strength, I am, in 1 litre distilled water, mixing : 

Calcium Nitrate @ 139gms
Potassium Nitrate @ 43gms
Mg EDTA @ 19.5gms

My usual method is to use hot water to first mix in the CalNit, then the Mg and the Potassium nitrate.

It al dissolves easily into an absolutely clear liquid, and seems to be working fine, as can be seem from the plants image attached in my previous post. However, after a few weeks, one day suddenly ill notice, and I suspect its the Calcium, precipitates out in the form of solid white chunks.

Image below, not the clearest, but what i have for now. So that's a waste of the concentrate and I figure i did something wrong, and remake a fresh concentrate for the same situation today evening after like maybe 3-4 weeks since i mixed the current batch in.

Any clues ? Im stumped. Am I mixing it wrong, but then it would take 3 weeks for the stuff to fall out ? Thanks folks.

 

salt

 

 

Reply
meisme
100 Likes
250 Likes
Percy Grower
Points: 749
Posts: 55
Topic starter
(@meisme)
Eucalipto
Joined: 2 months ago

Hey folks! Hope all good! 

So Im still not used to how different the plants look under these LED lamps. does not help that I have red green colour blindness.. Or so im told. I dont know any better.

2nd Plant.

Over the past days the leaves have been going all pale, the new growth seems a little strange, a little more spindly. Now im still playing around with the nutes, so its quite pointless asking for feed advise. But i would love an education in identifying defficiencies.

(I have discovered a huge problem with the water im using to mix my concentrates. So I know the feed is inaacurate)

I broke a fresh leaf now that really looked a lot worse under the lights that it does outdoors early morning. But then the Fan leaf, am I back in a calcium deficiency ? 

3 leaves, fresh medium and old.

Thanks a ton folks!

 

fresh
Medium
Old
Reply
meisme
100 Likes
250 Likes
Percy Grower
Points: 749
Posts: 55
Topic starter
(@meisme)
Eucalipto
Joined: 2 months ago

Hi folks!

Educate me please. Below are two leaves from the same plant. Am I correct in assuming the Left one is showing primarily magnesium def, and the right one Calcium ? Or are they both different levels of the same Calcium and Magnesium def ?

Thanks a ton!

1
Reply
meisme
100 Likes
250 Likes
Percy Grower
Points: 749
Posts: 55
Topic starter
(@meisme)
Eucalipto
Joined: 2 months ago

Not getting much traction are we... i shall persist! 😉 

So of the 2 plants im attempting, the one monekydo helped with here is growing fairly healthy i think, the other, larger, in a bigger pot not so much. Leaves above from larger plant. My runoff was not ample and the coco was getting quite hot, last evening flush and feed and some improvement on some new shoots.

Then I notice the specks on some lower leaves, and the mite that killed my last grow. Sorry bout the blurred image, best I could do. Spider mites ?

Mites
Mites2

So made a 1l tap water + 2ml of a neem extract insecticide which reads :
Azadirachtin E.C. 1% w/w, 10000 ppm + a drop or two of a Silicon Based Non Ionic Adjuvant

neem

Foiler spray with much from below. Light off and a breeze for a couple of hours, tent is open.
Repeat 3 time, once every 3rd day. 

RH is bout 50-60 and Tem mid to high 20*c

Is this ok ? I would have liked to ask here for help before doing anything, but from what I saw last time around im not too sure I have the time. I also have some isopropyl alcohol if thats a solution.

Thanks a ton!

of.. and a pic of the plants, quick light on for the pic. They have been showin preflowers for a bit now, but not really flowering...

Left one is the one with major nute problems and the bugs, right one is the one monkeydo helped out with. Cheers folks! be safe.

plants
Reply
Toploader
100 Likes
250 Likes
500 Likes
1K Likes
2.5K Likes
Pirate, no country
Diary Writer
Patreon
Known Member
Points: 8744
Posts: 679
(@toploader)
Linalool
Joined: 6 months ago

Having had spider mites largely ruin my previous crop, I now take them very seriously.

I treated with Neem oil around 18 days or so ago and have repeated twice since preventatively.

So so difficult to give an assessment from your initial pictures and frankly because I do not consider myself any kind of authority. However those leaves do look remarkably similar to how mine initially looked.

Hope you've caught them in time.

Reply
Macky
Mentor
100 Likes
250 Likes
500 Likes
1K Likes
2.5K Likes
5K Likes
Grow Off Diary
Youtube 1K Views
Diary Writer
Amazon Patrion
Patreon
Completed Diary
Complete Grow Off Diary
Facebook Rep
Instagram Admin
Writer
Stoner Movie Club
Australia
Veteran
Points: 89919
Posts: 7342
(@macky)
Beta-Pinene
Joined: 2 years ago

I would definitely treat with some neem oil spray before you go into flower. Try and get rid of them, or prevent them from spreading any further.... maybe getting some nematodes and adding them to the grow room will help. 

The plants don't look bad, a little effected by the bugs by the look of it. But they don't look out of control, and you should be able to get a decent handle on it Smile

https://percysgrowroom.com/how-to-get-rid-of-spider-mites-on-a-cannabis-plant/

This post might help Smile

Reply
meisme
100 Likes
250 Likes
Percy Grower
Points: 749
Posts: 55
Topic starter
(@meisme)
Eucalipto
Joined: 2 months ago

Thanks a super toploader and Macky!

I have seen that article Mackie, and have soap on order. In the meantime i used the non organic (i think) insecticide and I hope thats ok.

Topside, interesting you saying on the leaves, I have been under the impression all of my problems are nutrition related, you saying you had a similar looking plant but it was the bugs ?

Reply
Toploader
100 Likes
250 Likes
500 Likes
1K Likes
2.5K Likes
Pirate, no country
Diary Writer
Patreon
Known Member
Points: 8744
Posts: 679
(@toploader)
Linalool
Joined: 6 months ago

In my inexperience I too thought I'd buggered the nutes up, I also thought I'd got the lighting wrong. However eventually I looked hard for signs of mites and found them.

Congratulations you have spotted them yourself and are taking action. Part of the learning process I suppose 😁

Reply
Toploader
100 Likes
250 Likes
500 Likes
1K Likes
2.5K Likes
Pirate, no country
Diary Writer
Patreon
Known Member
Points: 8744
Posts: 679
(@toploader)
Linalool
Joined: 6 months ago

Do excuse me for posting a picture on your thread, but thought you might be interested in how things progress if undiagnosed. 

It would have been an unmitigated disaster were it not for the fact I turn most of my crop to oil anyway. The largest colas were decimated really. The popcorn was good though and encouraged me to get straight back on that horse ! 😁

Mites
Reply
meisme
100 Likes
250 Likes
Percy Grower
Points: 749
Posts: 55
Topic starter
(@meisme)
Eucalipto
Joined: 2 months ago

hha, I actually do know what happens if you just wish the problem away. I had a good looking auto lemon and another one of the above plants in my previous attempt (seeds from a hermied GSC auto), had to throw away the GSC and most of the lemon auto, along with a early harvest.
Its what im smoking now. Its ok. Better than the bag for sure. And all the damage was like done overnight. Had webs all over the flowers.

I was trying the previous grow in DIY RDWC rig, and over the mites I had some serious infestations in the root zone too think they were fungus gnats, sound right ? So moved to coco for this one. Let us see.

Its a much cleaner grow, and I have it rigged now with a automated watering rig, which is what caused the run off to go off, but think I should have it dialled now. Also moved it to only 1 plant, gonna hand water the big one. The collection buckets are from the aforementioned RDWC kit. 

Its a real clean grow compared to the DWC, weather here meant there was always a lot of condensation on the buckets (I was using a chiller), and just wet and messy. This is nice, but I cant be hand watering everyday. If, things ever do go back to normal, i used to be on the road a lot.

So here is what im trying to make work now. I have another automated pump coming in, and will prolly dose the second plant independently. For the res, I have a air stone and a wave maker or something inside. Keeps it moving, and the EC and pH have remained stable over few days so far. Maybe more air.
The wave maker inside is keeping the waters temps high, but think should be ok for coco ? Maybe add some beneficial bacteria and fungi to the res ?

2
1

Please post all the pics you want. I dislike lonely threads, especially mine

Reply
meisme
100 Likes
250 Likes
Percy Grower
Points: 749
Posts: 55
Topic starter
(@meisme)
Eucalipto
Joined: 2 months ago

Hey folks! Quick question simple answer please.

Is this a magnesium deficiency ? And if so, how far along ? Thanks a ton! Pic taken outdoors.

1

plants from an hr from lights out. Sure they would look better under natural light. But you folks lemme know. 

2

Take care folks!

 

Reply
Page 2 / 4

In our cannabis growers forum, we have guides to growing cannabis, cannabis grow dairies that cover growing weed in hydroponics, soil and coco. Find the help you need, by either, using the search box, or asking for help in the forum.

Our cannabis growers website also has competitions where you can win free weed seeds. As a member you will also have discount codes for cannabis seeds, and LED grow Lighting.
Our Cannabis Growers Forum is for educational purposes and we encourage our members to check their country of residence legislation before germinating a marijuana seed.

This site is here because we want to help you grow your own cannabis for personal use. Therefore, any member who is suspected of growing cannabis for commercial gains will be banned immediately.

Please read our forum rules, and enjoy the site.

Percys Grow Room Facebook Page, Cannabis grower forum fb page,
percys grow room twitter icon, cannabis growers forum
pintrest logo percys grow room, cannabis forum
percys grow room instagram logo

Find us on all social networks! Just search for Percys Grow Room