what problem is that?

Depends on where it's happening and in which order.

Betting on nitrogen/mg deficiency if it's starting at the bottom and working upwards.

its starting at the edge of the leafs and going in....

I suspect nitrogen deficiency. Is there browning of the tips or not?

If there's browning, it seems like magnesium is your issue.

if so what could i use for Mg ?? the netus im using have a little bit if mg but psobably not enough without OD on the major stuff so whta could i use for just MG

Plum or cherry?

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theres a pic of then u can kinda see white i mean......is it possbale to have mits inside....this is a inside grow?

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here r some more pics any help would be nice

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What is your pH? Do you know?

That will help out greatly. The middle of leaves yellowing out before the outer parts is bad.

There is a nutrient guide, which is pretty much a standard guideline for most any plant.

http://www.greenmanspage.com/guides/tables.html

that plant might be getting too big for ur planter, as for nutes tomatoes are nitrogen sensitive . nitrogen will encourage un productive growth you want to be using high phos nutes example npk 10-50-10 hope this helps

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