Problem in week four yellow leaves! Please help

DankGriff

Active Member
Hi all,
I am growing some critical + 2.0 in a small grow box at home. Run into some problems now and need some expert advice.
Any help or advice you can give would be great :)

I'll list the main info below for convenience rather than rattle on! :)

Strain- Critical + 2.0 by Dinafem seeds
Stage - week 4 of flower
Medium - biobizz light mix
Light - 2 x cfl bulbs
Temps - between 20c and 28c
Nutrients - canna flora
Feed schedule- <5ml per 1.5 litre mix fed between watering once every 2 days. Only about 0.5 litre or less each time.

Ok now all that's out the way. Some pictures below. :)20180208_193757.jpg

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Nutty sKunK

Well-Known Member
What’s your water? Around this time plants seem to require more of just about everything.

Make sure your supplementing sufficient calcium, that’s my thought on dark patches.

The yellowing looks like low N or early senescence. Perhaps due to too high a ratio of P/K..
 

DankGriff

Active Member
What’s your water? Around this time plants seem to require more of just about everything.

Make sure your supplementing sufficient calcium, that’s my thought on dark patches.

The yellowing looks like low N or early senescence. Perhaps due to too high a ratio of P/K..
Hi man.

Thanks for the reply.

It's It just tap water I usually leave overnight before using.
I try water between feed usually every other day.
Havent got a pH meter unfortunately.
Ran some power plant last time round and had no issues using similar dose. Power plant is quite resilient so maybe why.

I'm only using canna flora at the moment at quite a low dose yet i noticed some nutrient burn quiet soon into flower so have eased off a little.

Are there any products you would recommend I try?
 

DankGriff

Active Member
Help me save my girl. Half plant showing deficiencies!
I posted have tried rescuing but seems i have now over fed.

Buds are looking and smelling amazing now in week four but I fear she’s going to give up on me.

Took the best photos is can below. It's strange as it only seems to be half the plant??
 

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