New-er Grower, Running StinkBuds System Weird Leaf Question

[Thetablesturn]

I took clones from a known female plant, Kept in the cloner for 3-4 weeks. Moved them into the Vegging unit, all is going well except one little thing.

Anyone know what this is from? Its only on these two, but id like to know what caused it.

Thanks

 

[JJ Bones]

How to Ask for Grow Support

 

[bucktoothal]

hello
what you have is a pottassium or possibly calcuim defficiency

 

[oldman60]

Looks a little like a burn from water sitting on the leaf while the light was on.

 

[Cultivator]

that looks like u have splashed it with water or nutes and light has burnt it. def not a calcium or potassium deficiency.