5 Weeks Flowering - Fan Leaves Droping

Please Help..

Dinafem Critical+ Growing in Soil
1000 Watt HPS
Tempreature 22-29C
5 weeks Flowering

I transplanted to 5 gallons pot first day switching the light to 12/12 and decided to feed them a light dose to boost floweing after one month as by the instruction on the potting mix. After feedig a light dose GH biothrive Bloom 2-4-4 (5 Tsp / 5 gallons water) for the first time last week, I came up after two days and found all my fan leaves turning yellow and droping fast. Before that every thing was green and healthy exept for some burning on the tips. I did not PH the water cuz it saiz on GH bottle "don't do it!!" I know it was arround 4.8 after adding the fertbut I did not up it.



When I came today I found the soil bone dry and gave them another feed Biobizz Bloom 1-2-2 & molases, thinking they might look under fed.

Can you please help me find the problem to save those babies.
Thank You

Sounds like nute lockout due to PH being off.. I'd do a light flush with 6.5 PH water. And always adjust PH every water/feed to 6.5 in soil...

Waaaay over fed

To much water. Weed is a weed, remember, dry and wet cycles... hence the drooping leaves... over fed...

Thank you for your response.
This is strange, cuz I always water after a dry cycle and I waited 4 weeks in the new pot before giving them their first feed. I tested the ppm and it was arround 350, isnt this supose to be a light feed and I noticed the leaves becoming light green before the feed. The only reason I did not play with PH this time is that GH line clearly says dont adjust it.

My question now, what is the best I can do to save my harvest? in my 2nd run should I skip feeding and relay on the potting mix nuts only?

Thank you

The real problem was to much P&K!
Your from the UK I take it. Use a Plagron mix did you? They (Plagron) has a mix that's quite high in P&K and requires no addition of them! The "hot"or "burnt" look from the leaf tips shows the transplant was into a "hot" soil. You did not need to add any nutrients due to the late transplant into the "hot" soil and it would have done some yellowing early because of that late trans.
To answer your new question.
Simply water with straight water.....they'll finish....Not pretty but they'll finish out.
Please note that soil self pH's. If you pH the run off, all your getting is the pH of the run off - not the soil.
If in doubt,,,,add a Tbl spoon or 2 of Dolomite lime to the top of the soil.
Not real familiar with Plagron and how they amend for Ca and Lime to control pH. But the top dressing won't hurt here at this point.

Good Luck

Should still be some decent smoke! And now you know for next time. Good luck

Could she be root bound? Thats the first thing I check when fan leaves start looking like this. 5 out of 6 times I had similar symptoms it was a root bound plant.

Thank you very much, I will stop using any nutriunts for now

Actually I looked for the label and there was a problem, It says "No need to supply extra nutrients for the first two months" not one, idk how I missed that. Does this mean I don't have to feed for the entire 55-65 days flowering?

Label on the soil
Nitrogen 2.00%
Phosphorous 1.00%
Potassium 0.70%
Mag 0.70%
Iron 0.95%
PH 6 - 6.5

I started them in small cups, and then after few weeks moved them to 1 Gallon pot. after showing their first signs of pre-flower (2+ Months) I transplanted to 5 Gallons using the same potting mix and moved them to flowering room the next day. after a month flowering I felt some yellowing and was not very satisfied about bud production.

I am asking because in my 2nd run I used the same transplant scenario, flowering for 8 days now. What should I do so I don't repeat the same mistake and get a better harvest? This is the lightest potting mix I could find in my area , it is really difficult here.

Thank you again

Dr who is right that 'magic sauce' you gave them burnt the crap out of them, even the hairs were singed. Flush very well with lots of runoff. The plant was already suffering from salt build up giving you yellow leaves, this is what happens in most soils. To avoid the yellowing use coco. Also STOP feeding the burnt plants for at least 2 weeks.

Thank you all of you for the advice, things are getting clear now.

Is it better to flush now while the soil is already moist or should I wait few days before doing that? I don't wanna add insult to injury by dawning them.

To be honest the salt build up was clear on top of the soil before adding the nuts, It is new soil to me and I did not see that before. What should I do to fix this in my 2nd run? They are already in the same 5 gallon pot in that same mix.

Thanks