new issue late in flower..please help..skip to last page in thread

[jdsworld]

Ok guys i moved the light back from 16 inches as clearly too close to around 22 to 24 inched away from canopy.

Been adding 20 ml coco a and coca b per 10 l and 10 l rhyzotronic. here are photos about 24 hours later. i think they look a lot better. do you guys agree? And any mor3 r3cxommendations? The smallest and one w most damage is dutch passion glueberry og. The other 3 are hso dedoverde haze auto

 

[Chronic_passion]

Been adding 20 ml coco a and coca b per 10 l and 10 l rhyzotronic

From what I've read @blue is giving good advice here. I did the same as you at this stage (20ml a&b) and burnt mine. EC was around 1.8. Problem is you won't see it immediately, it'll take a few days to show up.
I'd drop your nutes down to 15ml or even 10ml each on the safe side (15ml gives me about 1.2-1.4EC in 10ltrs).
But hey I'm just a noob too...

I would typically go in at 5.8ph

i'd probably be at around 1.2EC at this age ..

 

[jdsworld]

Thanks i wasnt sure what my solution translated to in ec so that was very helpful. ill tone it down to 15 per 10. Ty.

 

[jdsworld]

Seem to be back on track and doing well. Went out and bought a ph meter instead of drops. My ph on each watering was all over the place imo and now im dialed in at 5.8 to 6.1 everytime. Also keeping light about 23 inches away from canopy atm.

Dedo haze by hso simply amazing do far..took the ph and heat beatings like a champ

Thanks for the helps

John Davis

 

[Chronic_passion]

bought a ph meter

probably your best tool to keep them healthy after you're environment.
When you can squeeze it into the budget it's worth getting an EC probe too.

I was advised to fill my buckets and leave them for 1-2 days before mixing the nutes to allow chlorine and any other nasties to evaporate. After you add the nutes it's worth leaving it for a good 20 mins+ before adjusting pH.

I got lazy and added 2 buckets to my res straight from the tap... next day my pH was 7.8! Had a massive battle trying to stabilise it and ended up ditching the lot and starting over.

Looking very healthy

 

[jdsworld]

Just a quick update...they have recovered and are flying. Have even started lst bondage..

 

[jdsworld]

Ok i need everyones help again..to recap

Growing in coco using canna coco a and b nutrients
Using 600w hps and ph to 5.8 to 6.0

Plantd have about 3 weeks left or so...about 2 weeks ago added canna booster to the mix everything looked good

Using 25 ml cocoa a and b per 10l water and 10 ml to 15ml booster. Last week started adding pk 13 14 to the mix at a rate of 15ml per 10l. Was most of the way thru this regimine when problems started occurring and i did a quick flush (did not ph water) and then took out the booster and reduced the pk 13 n 14. Plants seemed to get worse since so i went out and picked up some cal mag and have been adding that at 10ml per 10l. Problems didnt pop up until i started pk 13 14 add on. Any ideas what this is and how to fix? Im assumimg cal and mag deficinecies due to a nutrient lockout?

 

[Waira]

....hmmm, kinda mixed up symptoms here,.. but being all on the tops, it's a micronute defc. for sure,... spotting looks like Ca defc. but if so, there are others acting up too,..(Ca isn't a micronute BTW),... you know, this might be some B defc. happening too,... Coco isn't as flexible with nute availabilities, more like true hydro', very bitchy and narrow ranged,... look into getting a micronutrient supplement, like Earth Juice Microblast,... treat medium and if you're willing to try, some sniper-shooting foliar sprays, keeping the buds dry as possible, and focusing on the affected leaves (tops and bottoms),... you will need a wetting agent as well for sure, that's key to getting things coated and sticking evenly,....