Seedlings getting spotty

Growing hydro,, ph 5.9 ec 0.6,,
Two week old seedlings are all showing silvery spots on leaves, done a problem search and all it keeps throwing up is Thrip,, I’ve examined each one and there is no thrip on any.
Any ideas ,, thank you

are you spraying them with anything mate?

Rowdybuds said:

are you spraying them with anything mate?

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Yes, spraying with nitrozym by growth technology,, could that be causing it ?

Coco bean said:

Yes, spraying with nitrozym by growth technology,, could that be causing it ?

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I'm no expert mate but that's what i looks like to me i get it sometimes if i spray and it doesn't fully absorb before lights on.

Rowdybuds said:

I'm no expert mate but that's what i looks like to me i get it sometimes if i spray and it doesn't fully absorb before lights on.

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I sprayed when the lights were on,, I assume that’s wrong

Coco bean said:

I sprayed when the lights were on,, I assume that’s wrong

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if it's hot it can dry on the leaf rather than be absorbed and the drops can magnify the light and cause damage in my experience but i think others may spray with lights on so again i'm no expert and hopefully someone with more knowledge can help you out, they look good otherwise