little brown spots covering leaves?? HELP

2 of my plants have started showing little brown spots covering the leaves. I have heated it could be calmag or ph but I'd rather get someone's opinion who actually knows what there talking about. Thanks guys!!

It's not spider mites

RickyBourne said:

2 of my plants have started showing little brown spots covering the leaves. I have heated it could be calmag or ph but I'd rather get someone's opinion who actually knows what there talking about. Thanks guys!!

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how tall are your plants, how many weeks old, and has it showed up on newer growth or just the old fan leaves? Looks like calcium deficiency, or its being locked out for some reason

RickyBourne said:

2 of my plants have started showing little brown spots covering the leaves. I have heated it could be calmag or ph but I'd rather get someone's opinion who actually knows what there talking about. Thanks guys!!

Click to expand...

calcium and magnesium begin to get locked out at 6.4 ph and lower in soil. probably would only be that bad if your ph was like at 6 or lower so probably lacking calcium. Do you use RO water?

RO water?

There autoflower about 37 days from seed about a foot tall. And it started at the bottom. Started with one plant and now another has started. Thanks

To be honest I haven't checked ph. I'm going to get a ph kit tomorrow and some calls mag and maybe flush the plants and give them calmag. Could I give them calmag after flushing or do I have to wait until they have dried.

RO, Reverse Osmosis filtering, its ur water RO Filtered, or otherwise treated?

What are you feeding your babies? Check you Ph, both going in, and out, if its 8.2 going in and 5.6 @ runoff, your soil is way acidic...

Careful flushing auto's they dont like over watering, do it only if u need to, may just be able to toss a little epsom salts in the top dressing n water them

Feeding them ionic bloom nutes. I'll try the Epson salt. How would I go about doING it? Sorry I'm new to growing.

A and as for water I was just using shop bought water at 6.2 ph (at source)

What would be the best thing for me to do to them. They are autoflower and about 2 weeks into flower

I used Ionic awhile back some years ago.. It was NOT ph friendly. I'd suggest getting a PH meter so you know what your working with..

Ok thanks dude

6.2 ph is low for soil. Don't use epsom salt get cal-mag plus You have to have the right ratio of calcium and magnesium. http://www.amazon.com/Botanicare-BCCMGAL-CAL-MAG-Plus-Quart/dp/B000J2CUPW

http://www.amazon.com/General-Hydroponics-GH1514-Control-Kit/dp/B000BNKWZY/ref=pd_bxgy_hg_img_z This works great. Mix your water fertilizer solution then test it with the green dropper bottle.

Do those brown spots get bigger? It seems almost like old bug damage.

No they just stay small thanks pal

RickyBourne said:

No they just stay small thanks pal

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bet add some cal/mag and your issue will go away