whats wrong? (yellow tops)

buckd316

Well-Known Member
i haven't seen this before and was just wondering what causes this.
 

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could it be ph problem? this started after i switched to tap water but all the others dont have the same problem only this one.(all same strain)
 
Its iron diff....buy some cal/mag add 10ml per gal tell it stops, then just use 5ml per gal..add it when u water every time..good luck.. Meangreen.
 
its a calcium magnesium supplement that has iron in it too..most water doesnt have anuff in it for growing pot..iron diff always start on the top of the plant thats how u can tell..u can spot most diff by were they start ( bottom or tops of plants)...meangreen.
 
might have something to do with the light change.... like a ginger in the dark, then going outside and getting sun burnt??

im not sure
 
cant be light change this started before i switched to hps. ima go with cal mag. thanks meangreen

yeah buckd trust me its iron diff..i have a plant that eats cal/mag like crazy so ive seen it alot before i know what it was..its gets the worst when they go in to flower....meangreen
 
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