first grow. problem in flowering overfed or starving.?please help

[Mems45]

hello everybodu
thats my first grow. i have 6 autos 3 of them 10 weeks rqs northernlight. 2 8 weeks old rqs northern light and one orangenpunch from dutch passion in 5x5 grow tent with 1000w hps in open reflector and td 500 570 cfm exhaust fan. i have used biobizz lightmix in 6 gal fabric pots and also bio biz indoor pack last time i used 1.5 ml per liter grow bloom and topmax lookslike something is wrong i hope you guys have an idea

 

[namvet25]

Flush them with cal/mag water that has been ph,d.Afew look like there coming to there end and thus they have leaves turning yellow.Wait a few days and feed bloom nutes.

 

[Mems45]

Flush them with cal/mag water that has been ph,d.Afew look like there coming to there end and thus they have leaves turning yellow.Wait a few days and feed bloom nutes.

thank you for your kind help i would definately flush them

 

[Olderfart]

I'm no expert, but I don't think your leaf color is from plants finishing up. Your plants have weeks to go - all pistils are white, you are in early flower on all plants, some earlier than others, but all a long time from finishing up.

@Waira is the person to have a look at this, but I think you are dealing with significant deficiencies and/or lockout. Waira may have an idea of where to go from here.

Good luck with it.

 

[Jackson]

No expert here but it looks ph issues

 

[Fermented_Fruitz]

1st easy step slurry soil in few and get ph n ppm reading! Where I’d start for sure!

 

[Waira]

-- undefed, long term... Don't flush, this will make matters worse! I see mutiple defc.'s here, P, N, S likely micro's not far behind,.. 'Bizz is pretty mild stuff, it's easy to underfeed that I've seen in here. pH usually hold well enough, but you'll need a soil pH probe to do this properly. Slurry will involve mining up a bunch of soil deeper down, shredding roots-- not worth it!
Up the bloom feeds and supplements (AlgaMic) ASAP, and look into a PK booster of some kind maybe,... damage is done, best you can do is slow down the eating of fans; they are tapping out fast, but only for mobile (within the plant) ones, micros, Ca, S are all immobile; these defc.'s show at the top first and worst because of this... mobile ones can be translocated from older tissues to support new growth/buds....