Does this look like iron def ?

Hi just seen new wrinkled growth on chemdawg with pale base to leaves but outside edges of leaves are still a good green colour .

they look fine to me what are your temps and humidity?

hard to tell with that light on but still looks quite normal

Turanchala said:

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if you are starting to flower then that humidity is perfect, but if you are still vegging them then i would say try and raise that humidity a little bit. about 50 - 55%. your temps are a little bit low at 21c but i guess that's to be expected with L.E.D lights as they don't give off that much heat. i would say your grow is perfect to be honest. i wouldn't worry to much about that wrinkling

steve870 said:

hard to tell with that light on but still looks quite normal

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Started off with advanced nutes sensi a and b then changed them to canna 3 weeks from seed as my 36 litre res was fluctuating to 6.5 from 6.2 ( the ph perfect a.n supose to be ) my pots are 7.5 litres with 60/40 coco hydroton using one 600w viperspectra led and one 400 w same led , water once a day at .8 ec try to keep ph @ 6.00 everyday ,also I started to give them extra light from the ocl 1000w set at 600w which is about 4/5 feet above canopy

ok but like i am saying its hard to tell with that purple light