Forbidden Fruit first month in flower yellowing leaves

[static123]

Hi all, these are two forbidden fruit strains,
I feeding full strength bio bizz nutrients as per the bio bizz guide. I am feeding plain water every other feed. They are in soil and the water is always PHed to 6.3 they are under LEDs (I won’t mention the brand)
Temperature is lights off 18 light on 23/5 humidity is between 50 60. As you can see some of the larger fan leaves are turning yellow, is this normal at this stage (1month in to flower) if not what would be the best way forward to stopping it spreading?
Many thanks as always

 

[Roy Growin]

Hello - used BB for quite a while, and this is usual
Only way I found to perk up is a very weak H2O2 rinse [I know it sounds mad, but it re-oxygenates and prevents pH acceleration] then PK + Si/Micros boost

 

[static123]

Thanks for the reply, I am sorry I am a little lost with what you suggested ?

 

[cbdhemp808]

Hey Static,

Looks like your pots are on the small size, meaning roots are bound up. The girls are in flower and need lots of nutes. Yellow leaves looks like N deficiency. You could try switching to Fox Farm Tiger Bloom, and feed every day. Maybe even mix in some Grow Big for N. I see Bio Bizz is made from molasses. I'm very much anti-molasses due to content of toxic heavy metals and acrylamide.

happy growing!

 

[EZCalyx]

Thanks for the reply, I am sorry I am a little lost with what you suggested ?

Hydrogen Peroxide = H2O2