Leaf Problem Please Help

I'm having leaf problems and I dont know what cause this problem. Im using Light Mix Soil From Bio Bizz and BioGrow from BioBizz to. Here the pics of the problem. Thanks for the reply.

I always water in correct ph and do proper doses about nutes. And the temps and humidity in good ranges.

take a pic of the whole plant

It's calcium def.

that's what it looks like, but nute burn can cause leaves too look like that too

here the worst one:


here some leafs of the other plants but they are single in each plant:



here the hole grow:

whuh said:

It's calcium def.

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How I get calcium? thanks

Possible under feeding? Where are you at in you grow? veg/flowering?
How much you feeding? full dose or any % there of?
Possible over water too

How close are your lights?
And what lights do you use?

It could be heat stress.

Are they starting to flower?

I'm been veg this about 5 weeks. I'm feeding them with BioGrow 2ml per litter. I'm using a HPS 400W. No they arent start to flower they still in 18/6 light cycle.

k0ijn said:

How close are your lights?
And what lights do you use?

It could be heat stress.

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I gonna check this... I go put the light a little far..

Biobizz is very low on calcium and magnesium, also works better with liquid seaweed i find. Hard to burn plants with using biobizz, i need cal/mag supplements but i got soft water, even with good water i still need a little extra with my biobizz. Their foliar spray 'Biobizz Foliar' contains good calcium levels. Really recomend using this in conjuntion with biobizz grow. Seems like the foliar and seaweed supplement would compliment your grow nicely. Peace

Kingrow1 said:

Biobizz is very low on calcium and magnesium, also works better with liquid seaweed i find. Hard to burn plants with using biobizz, i need cal/mag supplements but i got soft water, even with good water i still need a little extra with my biobizz. Their foliar spray 'Biobizz Foliar' contains good calcium levels. Really recomend using this in conjuntion with biobizz grow. Seems like the foliar and seaweed supplement would compliment your grow nicely. Peace

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Nice I gonna get that. And what you think about the problem calcium def?

I dont know dude, looks like calcium deficiency if you look at grow guides and books. If your water is low or high in calcium that would futher help nail it down, do you know the ppm of the water? Biobizz is low in calcium though, i not used their foliar but is advertised for fixing calcium deficiencies quick, there alga mic is just a seaweed supplement and i'll tell you about how good their fish mix is as i get that tomorrow. Im also getting a cal/mag supplement tomorrow as i have soft water so cal and mag has been a problem with biobizz and probably any other totally certified organic nutes.

That said i hate grow books and cant work of them deficiency charts, i got a chart for cal/mag but it dosent look very similar yet, calcium gets worse quick and derops yellow bottom leaves differently to nitrogen def.

Im with max though, definatly looks deficient or over done, as its biobizz im just picking on them cause they lack calcium big time and magnesium. I couldnt call that, looks mild at the moment. Peace

there are some source that I can get the calcium fast? or just this product from biobizz I must use? thanks a lot!

I know people are saying calcium def, but I think you might have overfed them a little... I could be wrong but just keep an eye out on new growth

max316420 said:

I know people are saying calcium def, but I think you might have overfed them a little... I could be wrong but just keep an eye out on new growth

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Thats out of question because I feed them with the schedule from biobizz and its hard to nute burn them with It. But maybe not impossible. I gone check that!

Is that food strain and breeder specific? What's the ratio? And where did you get your info that's its hard to burn with that, you can burn any plant with any food, doesn't matter if its organic or inorganic.. Don't believe anything you hear and only half of what you see

Those feeding schedules don't mean jack shit, 99% of the time they are wrong