Not sure if I should up my bloom or Alg-a-mic

[Citadel]

Problem: Yellow patches on odd leaves below bottom canopy

Medium/grow method: Soil BioBizz Light Mix

Feed: and supplements used:
Fishmix/Bio Grow used fish for Veg 3ml P/L
Biobloom 3ml P/L
Alg-a-mic 4ml P/L
Bioheaven 3ml P/L
Activera 4ml P/L
Root Juice 4ml P/L once a week
Buddhas Tree PK booster 0.25ml P/L


water source: Bottled Water pH 6.2

Strain/age: Original Sensible Seeds Super Auto Lemon Haze

light used: 250watt hps first 2 weeks then uped to 400watt recently changed to 600watt 19" from top of canopy

Climate: Max 28 lights on 20 at lights off

Additional info: I have two other strains both Auto Kaya 47 by Advanced seeds not showing any symptoms like this one. Pretty sure its just starving from bloom as its flowers are way bigger than the other 2. The plants are rotated daily and moved around to make sure everything gets light.

Lemon Haze is the middle plant tried to get white light pics using a torch as HPS wasn't due off for a while cheers guys.

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[Citadel]

Forgot to add they are all at 6weeks from seed

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[namvet25]

Need picture with grow lights off.

 

[Citadel]

First two plants seem to showing signs of P deficiency the third is only just starting to yellow at the bottom just after taking the pictures they all got a feed of:

All measurements p/l

Grow 3ml
Bloom 3ml
Epsom Salt 10g

I've narrowed to down to either K or Cal/Mg hence adding Epsom salt also cutout biobizz additives. 12 hrs from now will be 48hrs after feed hopefully will show signs of improvement. I've also got a PK booster just incase it's just hungry from bloom...

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[Waira]

Looks like Ca defc. on top pics, post 1,.... lower yellowing is normal fan tapping, mainly N; up the the PK boosters (says 0.6ml/Lfor later stages which in equivalence the auto's are at or nearly so), stay on the other supplements as well, just cut out the BioGrow/fish goo,.... no more epsoms either, that doesn't help with Ca defc., it's MgSO4 only,.....

 

[Citadel]

Looks like Ca defc. on top pics, post 1,.... lower yellowing is normal fan tapping, mainly N; up the the PK boosters (says 0.6ml/Lfor later stages which in equivalence the auto's are at or nearly so), stay on the other supplements as well, just cut out the BioGrow/fish goo,.... no more epsoms either, that doesn't help with Ca defc., it's MgSO4 only,.....

Yeah was defo Ca Defc all going good again now yeah I upped the PK to the max 0.5ml p/l last feed... I'll be sure to cut the grow out now then. The lemon haze has swelled immensely over the last two days [emoji123] cheers for the input guys.

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