Do I have a deficiency or toxicity?

[ReptillianSorcerer93]

Problem: Dying Leafs.

Medium/grow method: Bio Bizz lightmix 10LTR airpot.

Feed: and supplements used: Biobizz Grow 3ml/ Biobizz Bloom 1ml/ Biobizz Algamic 2.5ml. (Per litre) fed 2litres every 2 days. NOT PH'd.

water source: Tap Water left for 24-48hrs

Strain/age: Stardawg About day 70ish. (Suspected Photo)

light used: (invisiblesunled) 2x 250w Qbs both dimmed to 100w

Climate: ON 28c 30% O 23c 40-50%

Additional info: it started about a week ago. It's not on the upper leaves or new growth, mainly the bottoms ones. Its slowly getting worse. Feed doesn't get ph'd. From what I've read I dont need to ph when using biobizz soil. I've checked how hard my water is and seems to be ok.

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[namvet25]

She looks good to me but you should use cal/mag to prevent any problems.It is common for lower leaves to yellow or discolor from lack of light.Your lights should be at full power for flowering but don't have them too close.

 

[ReptillianSorcerer93]

She looks good to me but you should use cal/mag to prevent any problems.It is common for lower leaves to yellow or discolor from lack of light.Your lights should be at full power for flowering but don't have them too close.

Ok thanks man, she needs feeding today so I'll start adding cal/mag, and I'll up the lights, think there sitting about 40" anyway. I had a untrained northern lights that got pretty tall but she came down today so will be able to lower them a couple inches. Cheers for the reply.

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[Waira]

:smoking: hey Rept', what's good?
.... I think you have a wee P defc. starting, not unusual with BioBizz,... look into a PK booster, something with very low to no N in it... that's a nice girls there, feeding big time, and she likely is just short on those goods now,... Of course, some fading is normal, but usually that;s more of an N thing getting tapped out initially,.....

 

[ReptillianSorcerer93]

:smoking: hey Rept', what's good?
.... I think you have a wee P defc. starting, not unusual with BioBizz,... look into a PK booster, something with very low to no N in it... that's a nice girls there, feeding big time, and she likely is just short on those goods now,... Of course, some fading is normal, but usually that;s more of an N thing getting tapped out initially,.....

Thankyou waira! I have pk 13/14 on me, I started feeding her 1ml per ltr, hopefully will help. It seems to have started getting worse now though, just cant seem to stop it@


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[ReptillianSorcerer93]

This very well could be a Mag deficiency... try an Epsom salt foliar spray. 1 gram old salt to one gallon of water.
Let dissolve... spray top/bottom of leaves liberally... this should help clear up the spots.
Tree[emoji111]

Thanks man, I have no Epsom salt on hand so unfortunately will have to wait till next week now to foliar her. It's on its way! Thankyou

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[Waira]

..symptoms are not that distinct Rept', but I wouldn't call this Mg defc. symptoms don't match,... notice how the along vein itself is yellowing, opposite of what Mg defc. does,.... Ca defc. does this, but usually higher up because it's nearly immobile within the plant...
Demand is high mate, up that PK dosage to 5ml for a bit and see if it slow/halts, up the bloom some too, and AlgaMic, if that's what has most of the micronutes in it..... it takes a couple few days to get in and working, so some progression is expected, and at this stage, some is normal,...