strange colouring on leaves

[superlarrson]

after looking at nitrogen deficiency chart it looks like zink its missing out on in veg and wondering what would be best thing to give them to sort this not feeding yet in all mix soil under 400 watt hps and if anybody can tell me how others look sorry bout pics bit dark only my second grow so any help really appreciated thanks

[DierWolf]

Yes possible Zinc Deficiency.

Zinc gets locked out due to high pH. Zn, Fe, and Mn deficiencies often occur together, and are usually from a high pH. Don't overdo the micro-nutrients- lower the pH if that's the problem so the nutrients become available. Foliar feed if the plant looks real bad. Use chelated zinc. Zinc deficiency produces "little leaf" in many species, especially woody ones; the younger leaves are distinctly smaller than normal. Zinc defeciency may also produce "rosetting"; the stem fails to elongate behind the growing tip, so that the terminal leaves become tightly bunched.

Check your PH of the runoff water, its most probably too high, lower it by watering with to 6.0 to 6.2 ph adjusted water.

[DierWolf]

Also i dont see any brown spots forming so probably just Potassium Deficiency, have you been feeding any nutes as yet????

Either way you need to check your PH first thing.... from there any balanced nutes 20-20-20 will fix the problem once your ph is right.

[superlarrson]

no nutes yest potted in all mix they are about 5 weeks old its only our second grow so if this is a zinc prob is it a good idea to give the 1 plant a mild does of nutrients

[DierWolf]

yes but remember these deficiencies such as zinc and potasium just dont come on just like that, its usually a ph problem...

But yes at 5 weeks you should give it some basic nutes.