help .. deficiancy issur or heat

Temps around 85
Humidity stays around30 40
Nft feed on half hour half hour off
Ph 5.9
Its about 4 n half weeks from seed
Some leaves are slightly yellow as u can in pics and have a few little cuts as u can see. Any help guys thanks m

Are the roots healthy?

And what do you "feed" them?

Your temp is too high. You should be shooting for around 77-80 tops. 85 is gonna give you trouble in flower. Make sure you are running your lights at night so they are that much cooler.

Roots are white and growing fine . Dutch pro a & b . Last couple days roots grew through spreader mat but look fine.

Yes they are on in the night ... i have a fan constantly blowing over . And have a cooltube but cant seem to get temps less than 85 with lights on .

Damn those are some fat indica leaves

firsttimw said:

Yes they are on in the night ... i have a fan constantly blowing over . And have a cooltube but cant seem to get temps less than 85 with lights on .

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Make sure you are drawing in cool air from outside and venting the warm air outside. Have your fan on the exhaust side of the tube and make sure it is drawing air in and over the bulb and not blowing.