Strange Discolouration on Zinnia Seedlings

Hi all I noticed this strange look on my seedlings. The plants look healthy and seem to be growing fine but I was just wondering if I should be worried about it.
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Hi all I noticed this strange look on my seedlings. The plants look healthy and seem to be growing fine but I was just wondering if I should be worried about it.
Posts
no, looks health,dont over water .
I thought it looked healthy too, its just those weird dark blotches, they look sort of transparent close up.
I recommend only watering seedlings from the bottom as drops of water on the leaves is a route in for fungal infections (not saying that is what this is, but..)
I'll keep an eye on them and see how they grow
I grew this seed last year from the same packet and had wonderful plants all Summer.
Looked at them today and now they look normal :P
I think it was the water drops from the roof of the greenhouse.