Brown fan leaves with dying tips also leaves curling down!???

Cheif205

Member
I'm a little over a month into flowering and seeing some of the bottom leaves turning a rusty brown, setup- 400w hps, 3 gall grow pot using fox farm nutes , temps from 76-60, I'm watering every 3 days about a gal of water each time also I'm using tap water with vinegar to lower the ph. Here's a few pics ... Thanks everyone
 

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mtunz

Member
idk man but my seedling is doing that, but im using old used soil and it was organic which I had trouble with in the first place im thinking a phosphorus deficiency
 
Is it a must that you lower the ph? I personally wouldnt mess with it unless you have to, if you get it to high or low it will stop taking nutrients and youll run into isues, whats your ppm? Id double it right away and stop using plain water your flushing out the nutes when you do that, im confident many on here would dissagree but the pics say alot, i hope it gets better for you
 
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