My buds are diplaying color changes in flush

[SamRD]

I'm on day 5 of the flush and my buds have started displaying this weird discoloration and it's spreading fast and getting worse. Can anybody help me identify the problem please?

 

[firstgrowdontknow]

Judging by the leaves maybe a bit of nute burn. Possible lights too close, I got some leaves that purpled/lost colour and they, I think, were either too hot or too close to the light.

 

[smokedareefer]

Isn't she pretty?

She's just doing her thing, watch and enjoy.