Whats wrong with my plants?

[GNick55]

To be honest mate they have only had that twice. The guy from the grow shop gave it me free and told be to feed it them (he knows my set up), I have no idea what it even is, it doesn't affect the ppm at all, he said its not a nutrient its a supplement. Shall I stop using it then

yes continue using it..

 

[Gingesbud]

yes continue using it..

How do I address a copper deficiency. My ph has always been measured between 6.2 and 6.5 and pretty much stays the same on the run off, I wouldn't say they have been overwater as I always wait till the plants to show me they are thirsty before I give them anything. I dont think its cause bh being too close to the light as i have both big and small plants so ones alot closer than the other but the little one is still showing yellow

 

[MIMedGrower]

That looks like potassium lockout from too much nute buildup. The yellow tips and edges are yellowing then will likely burn crispy. 5 ml per liter sounds high for any fertilizer.


I would do a light flush and feed a balanced complete grow ratio nute at a lower ec.

 

[Gingesbud]

That looks like potassium lockout from too much nute buildup. The yellow tips and edges are yellowing then will likely burn crispy. 5 ml per liter sounds high for any fertilizer.


I would do a light flush and feed a balanced complete grow ratio nute at a lower ec.

Hiya mate the bottle tells me to feed 7ml per litre

 

[MIMedGrower]

Hiya mate the bottle tells me to feed 7ml per litre

you have to watch the plants. The bottle is telling you the most you could need to feed. Most plants are fine with half to 2/3 strength in my experience.

 

[Gingesbud]

you have to watch the plants. The bottle is telling you the most you could need to feed. Most plants are fine with half to 2/3 strength in my experience.

Thats y I only feed them 5ml mate I did with the growth too and they have been fine all the way till now. Or do u think I've weaned them on the bloom too quickly

 

[MIMedGrower]

Thats y I only feed them 5ml mate I did with the growth too and they have been fine all the way till now. Or do u think I've weaned them on the bloom too quickly

well I don’t use bloom ratio nutes to avoid imbalances. Our plant only needs normal complete balanced fertilizer.

 

[lvstealth]

"BioBizz Light Mix is also pre-buffered for pH and the limiting agent used in Light Mix will automatically correct any pH variations in the substrate back to the optimal level."

so no matter what you make your ph, that soil makes it the optimal level (might want to find out what the "optimal" level is). so, if you are not wanting to put stuff you dont need, dont put that stuff in the water.

the ferts you use can cause a bit of build up in the soil, this brand and type soil recommends flushing fairly often.

 

[Gingesbud]

"BioBizz Light Mix is also pre-buffered for pH and the limiting agent used in Light Mix will automatically correct any pH variations in the substrate back to the optimal level."

so no matter what you make your ph, that soil makes it the optimal level (might want to find out what the "optimal" level is). so, if you are not wanting to put stuff you dont need, dont put that stuff in the water.

the ferts you use can cause a bit of build up in the soil, this brand and type soil recommends flushing fairly often.

So you think I should give it a flush. To be fair I dont feed it a nuted feed all the time it has had alot more plain water feeds than that a feed with nutes in its life. For my first ever grow everything has gone surprisingly well and they have looked really healthy until a few days ago when I woke up in the morning checked on them and they had started to yellow and some leaves looked darker, im just worried the problem has started now they are in flower because from what I've read it seems its harder to fix a problem after so long of flowering

 

[lvstealth]

im just quoting the biobiz light mix. but, yes. it sounds like they need to be flushed. sort of rinse the salts out of the soil. but i really dont know, just looked into the soils info

 

[GNick55]

i think you took them off the grow nute to soon.. you adjust ratios through flowering lowering some while raising others

 

[Gingesbud]

i think you took them off the grow nute to soon.. you adjust ratios through flowering lowering some while raising others

So what would u say do? Give them a light flush then add the grow nute back into it

 

[Aqua Man]

It's an uptake issue... when you start seeing mobile and immobile nutrient deficiencies its an uptake issue like PH, watering, nutrient build up, cold temps and or poor transpiration.

An imbalance and PH USUALLY don't show both.

If I'm guessing this plant could be cold, could be a lockout or watering issue... the other possibility is root rot.

 

[QuindariousGooch]

Any1 know what going on with my plants? Over the past couple of days they have started to turn yellow, some leaves look darker and the odd leaf has little tiny holes

It looks to be yellowing from the top down which could even be nitrogen. I've seen pulling nitrogen too early in stretch, AKA bud set, cause issues on heavy eaters. What is your ppm or ec? Especially first water out the bottom?
This also looks like early magnesium deficiency. Especially if you start getting necrosis showing as dark dead spots or patches. A flush could help but if it is not because of excess salts you'll compound the hunger before you can water soil again. If the plant is not transpiring the pot will dry slowly compounding the risk of root issues. If you're ppm is ok I would skip the flush and add a little ppm. The key imo is knowing you're levels before acting. Diagnosis is the key to treatment.

 

[QuindariousGooch]

It's an uptake issue... when you start seeing mobile and immobile nutrient deficiencies its an uptake issue like PH, watering, nutrient build up, cold temps and or poor transpiration.

An imbalance and PH USUALLY don't show both.

If I'm guessing this plant could be cold, could be a lockout or watering issue... the other possibility is root rot.

Good call. Cold can manifest as hungry. Great thing to rule out. Cheers on the open mind eh'

 

[Aqua Man]

It looks to be yellowing from the top down which could even be nitrogen. I've seen pulling nitrogen too early in stretch, AKA bud set, cause issues on heavy eaters. What is your ppm or ec? Especially first water out the bottom?
This also looks like early magnesium deficiency. Especially if you start getting necrosis showing as dark dead spots or patches. A flush could help but if it is not because of excess salts you'll compound the hunger before you can water soil again. If the plant is not transpiring the pot will dry slowly compounding the risk of root issues. If you're ppm is ok I would skip the flush and add a little ppm. The key imo is knowing you're levels before acting. Diagnosis is the key to treatment.

I see what could be the very early indication of potassium (edges scorching but it's not quite looking like typical K deficiency), excess calcium, phosphorus (very early dark green like bluish purple hue before splotches come), possible mag (if not potassium), possibly sulfur, iron or Zinc in the new growth that's lime green.

 

[Gingesbud]

Thank you for all your input guys. I've checked them again this morning and i think my 1 of plants are hermaphrodite definitely have no light leaks as they are in a tent in a cupboard. I've checked on the other 2 but they look fine up to yet just the one looking like this

 

[Aqua Man]

Thank you for all your input guys. I've checked them again this morning and i think my 1 of plants are hermaphrodite definitely have no light leaks as they are in a tent in a cupboard. I've checked on the other 2 but they look fine up to yet just the one looking like this

Yup... can plick the nuts and see how it goes.

 

[Gingesbud]

Yup... can plick the nuts and see how it goes.

What do you mean mate sorry I'm new to this

 

[Aqua Man]

What do you mean mate sorry I'm new to this

Pull the male parts off and see if it develops more... maybe she will only throw out a couple and maybe she will identify a male... but yes herming.