Bruce is hiding in my wardrobe.

[seymore_budz]

Looking good @Herbalist! As for the yellowing, looks like you're correct; they're hungry :) Give em a little more. I think the Plant magic guidelines suggest 4ml/L so you're only giving them 1/8th the recommended dosage. With those single part soil feeds, I've found 60-80% the recommended application rate is a good starting point.

[Herbalist]

Looking good @Herbalist! As for the yellowing, looks like you're correct; they're hungry :) Give em a little more. I think the Plant magic guidelines suggest 4ml/L so you're only giving them 1/8th the recommended dosage. With those single part soil feeds, I've found 60-80% the recommended application rate is a good starting point.

Thanks SB
This run, im trying The End from GHO been going easy as its npk 10-10-10 and don't wanna cook her.

I do like the plant magic basics. They haven't failed me yet. Will probably go back to them for the next run.

[Labs Dexter]

What lights are you using is it the qb? If so it could probably just be a case of little dimming maybe I'd try that... the qbs seem stronger than cobs in a my small tent and I thought my issues ranged from less feed to ph off in Coco to needing cal mag but it turned out I was doing the right stuff from day one just all I needed to do was dim the qb from 75-80% power down to 50%ish power and ze ladies are growing green well not now in my dairy because I was away lol

Looking fantastic tho buddy flowers are coming on beautiful

[Herbalist]

What lights are you using is it the qb? If so it could probably just be a case of little dimming maybe I'd try that... the qbs seem stronger than cobs in a my small tent and I thought my issues ranged from less feed to ph off in Coco to needing cal mag but it turned out I was doing the right stuff from day one just all I needed to do was dim the qb from 75-80% power down to 50%ish power and ze ladies are growing green well not now in my dairy because I was away lol

Looking fantastic tho buddy flowers are coming on beautiful

Thanks for the kind words dude.
Im using a HLG 135QB V2 RSPEC at full wack it draws around 151w and is currently about 3/4 power and 18 inches above the canopy. I'll give turning it down to about 50% a bash for the next week and see how she is.

[Herbalist]

Couple lights out pics

[Labs Dexter]

What lights are you using is it the qb? If so it could probably just be a case of little dimming maybe I'd try that... the qbs seem stronger than cobs in a my small tent and I thought my issues ranged from less feed to ph off in Coco to needing cal mag but it turned out I was doing the right stuff from day one just all I needed to do was dim the qb from 75-80% power down to 50%ish power and ze ladies are growing green well not now in my dairy because I was away lol

Looking fantastic tho buddy flowers are coming on beautiful

Thanks for the kind words dude.
Im using a HLG 135QB V2 RSPEC at full wack it draws around 151w and is currently about 3/4 power and 18 inches above the canopy. I'll give turning it down to about 50% a bash for the next week and see how she is.

Worth a bash mate your a good grower and I like to think I am too but when you can't figure the issue it's always worth dropping the power I noced a difference within a week to be fair so I hope it does for you too.

My qb is 240 or 260w qb made by @Forest and I had it at 75% all the time but was having what looked like hunger or just add cal mag mission but did all that and end result something told me dim the light because my tent is 80x80x160 and its all the way but through veg and now flower but after dropping power by 15% boom my current grow is back to how I actually grow which is sort of decent.

They don't look bright but they are an half powerful.

Again plants and flowers amigo looks banging so keep doing what your doing and hope to God its gonna work amigo.. Good luck broski

[seymore_budz]

Interesting topic :) IMHO, reducing the power of the light may help as you're reducing the energy supplied and slowing down photosynthesis. If you're plants are hungry, reducing the light will slow down the demand for food and they may start to look better as the demand isn't as great. Reducing the power could also correct environmental issues like heat etc and in-turn improve the overall health of the plants. It's a great tool for recovering stressed plants, but at the same time you're slowing down the plants.

Ideally you'd lower the light, figure out what the issue is, correct things and turn them back up. Trust me you ain't going to give your plants too much light from a single 200w cob :) Cannabis loves high light! I had similar troubles when I transitioned from HID to LED. Always put it down to "too much light" and fell down the whole DLI rabbit hole. Turns out even if you're giving them more than they can process, the energy is just wasted and shouldn't affect the plants at all. What the problem turned out to be is that I wasn't feeding enough! Switching to LED also increased the demand for nutrients. This in turn led to secondary macro and micro deficiencies. I'd notice purple spots on the leaves, Mg and Zinc deficiencies etc. First thing I did was reduce the power of the lights. Things got better and conformation bias set in. I thought I had it nailed until I did some research. After about six months of messing about with power settings and CalMag etc, I came to the realisation that I needed to add more food.

It seems to be worse for soil growers that use organic fertiliser as the nutrient are not as available to the plant and need to go through a whole process before the plant can take them up. Throwing a shit-ton of light at an organic garden when they're young is a recipe for disaster. You'll see a lot of organic grows seem to take a turn for the worst at first, then improve over the following weeks as the soil microbiology wakes up and the plants start to release exudes into the media.

The demand for nutrient also goes up as the plant gets bigger and tolerance bands for each element is quite large. So lower does of fertiliser will be sufficient right up until rapid growth starts. This also seems to catch a lot of growers out as things are fine and then *bang* lower leaves start to yellow, you get interveinal chlorosis and things take a turn for the worse.

The good thing about cannabis is that it's a tough little plant and is very quick to react to corrections. You can turn around a yellow plant to a green plant in a matter of weeks.

Take your photo above. You can see the older leaves and ones at the bottom yellowing, yet the sugar leaves remain green. This is because you have enough micro nutrients ad they're only required in tiny amounts, but you're low on primary and secondary macros. Most of these are mobile elements and that's why you see the yellowing and damage on the older leaves. Basically your plant is cannibalising itself to keep the buds safe.

The confusion comes from the cause rather than the effect though. There are 100s of reasons why plants may not be able to take on nutrients. But, I'd bet my left testicle that your issue is lack of food :)

[Labs Dexter]

@seymore_budz thats a great read mate and I'll give it a bash I got told same thing by another grower that can have theirs wuch is similar power to mine on full whack but I seem to kill things, I will try on next grow tho after the auto to go back to 75% onwards and see if just adding more than 20ml to 25ml of AnB... Thanks for that and I love the last line lmao I'd bet my left testicle lmaoooo had me tickled mate lol

Thanks for that tho and I'll bare in mind and try it... Maybe if I keep adding charge to the coco as well as anb might take things to a greener stage?!

[biosynthetic]

[seymore_budz]

@seymore_budz thats a great read mate and I'll give it a bash I got told same thing by another grower that can have theirs wuch is similar power to mine on full whack but I seem to kill things, I will try on next grow tho after the auto to go back to 75% onwards and see if just adding more than 20ml to 25ml of AnB... Thanks for that and I love the last line lmao I'd bet my left testicle lmaoooo had me tickled mate lol

Thanks for that tho and I'll bare in mind and try it... Maybe if I keep adding charge to the coco as well as anb might take things to a greener stage?!

I don't think charge will help much as its more of a biostimulant than a food. I'm not too familiar with GHO products, but the end seems to be their "semi organic" offering that's has all of the required biostimulants and other goodies and should be taken up by the plant immediately. 10 10 10 is a little odd IMHO, but it should be just fine. Just give them a little more. I think @GHO recommended up to 2ml/L.