5 weeks into flowering - nearly dead

GBmac04

Member
I'm trying out the autopot system for the first time. I put 3 great plants into flower about 5 weeks ago and they all grew well. Then the leaves started to go yellow/brown and crispie - turning up at end (see pic). I live in a hard water area so EC is set to 24 and PH at 5.9 - 6.1. I've been feeding with Canna coir throughout with PK 13/14 and accelerator added last week. Can someone confirm the leaves are showing symptoms of too high a nutrient value? and will my babies recover as only one third of leaves effected.
 

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i would say there burned or mabe even the room is to warm they do this if you fan sucks. looks like you should d leaf tho anyway? i have never seen so many water leafs at 5 weeks everyone has there different ways tho
 
Looks like severe nuteburn and/or heat issue. I would flush and raise the light or introduce another fan. Whats grow room temp? How highs light from canopy?
 
Room temp has been a problem with the recent hot spell . Normal lights on is 27ºC but has hit 32º a few times. Topmost buds are 80cm from 600w lamp with most buds at 90cm, and some at 100cm.

2 strains growing - Train wreck and white widow - both have same symptoms.
Having read comments (most appreciated) I have cleaned out the tank and refilled with tap water PH adjusted to 6.1. Will see what happens.

Assuming not too much damage has been done:

Are the damaged leaves likely to recover? will new leaves grow? Will the buds develop?

thanks
 
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