Please help!

On the first image i would like to know why the tip of the leaf is turning yellow and starting to make its way down. On the second and third image i would like to know why there are yellow spots on some of the leaves not all of them. Note that only a couple plants have this problem. On the fourth image i would like to know why the leaves are curling up at the bottom of the leaf. Any help would be greatly appreciated. Thank you

my seedlings often do this same thing. the first few sets of leaves get spotty and cripsy and usually die and fall off. i don't know why. by the time they get 12 nodes tall they are full and bushy and have grown out of it.

Thats koo bro thank you this is my learning curve for growing

this doesn't mean there can't still be a problem. keep a close watch, if it gets worse it may be something else.

i would deffinetly cover up that rockwool man , your hydroton should be all over it not just on the sides .. otherwise expect major problem mould/algea/collar rot etc ..

smallclosetgrowr said:

i would deffinetly cover up that rockwool man , your hydroton should be all over it not just on the sides .. otherwise expect major problem mould/algea/collar rot etc ..

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So, what should i do? move more rocks over the rockwool and put my drip system on the top of the cubes?