Help please! Closet grow brown spots on leaves?

[Locoschmoko]

Hi all,

Thanks for taking your time to read this, the strain is Sensi seeds NL Auto grown in Biobizz light mix soil using Biobizz nutrients.

She is day 17, only had 1 dose of 1/2 strength formulex about 4 days ago in PH 6.2 mineral water (could be the problem as not using tap water?)

Everything has been fine until this morning when I noticed these little spots on the leaves, praying to god it's not bugs and easily rectifiable.

Light used is a Marshydro 48 reflector.

Please take a look and I'm really hoping someone can shed some light on what the issue might be!

Thanks in advance!

Loco

 

[Locoschmoko]

Anyone? Does it look like a calcium deficiency?

Loco

 

[GetSchwifty]

I mean, it definitely looks like a lot of pics I've seen where people are having bug issues, have you noticed anything on the underside of the leaves? Eggs, webbing, evidence of bugs?

 

[skunkgreen]

I get these all the time...Ditch the mineral water...And watch your pH....It has never effected the plant for me....Just cosmetically

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[Locoschmoko]

Thanks for your help guys, it's growing well to be fair it just cosmetically bugs me. I'll leading more towards a slight calcium deficiency due to using LED'S (apparently you should use slightly more cal/mag). I'm ditching the mineral water and going back to my normal tap water as I never had this issue on previous grows... just goes to show that the saying is true! "If it ain't broke don't fix it!"

Loco

 

[NuttyProfessor]

did you splash leaves with some nutes , bottom leaves ? some people think they have problems but they hit leaves when feeding sometimes you get them marks

 

[Planter420]

Looks like lockout of ca mg or both from low ph... if more rust persists and you have no pests I would flush with ph'd water


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