Week 3 flower whites turning brownish?

[Sask420grow]

Here’s some pics with lights on. Using 1000w HPS in a 5x5. Light is 30+in away from tops.
I’m noticing the hairs are turning a brownish colour. Mainly the ones somewhat shaded by fan leaves.

This is one that looks good in my eyes.

This is one I’m concerned with...
what could be causing this? It’s not lots but the odd one. Some are worse then others.

This is the entire room. You can zoom and see the brownish ones.
What should I do.
All I’m using is the bio bloom once a week in a livingsoil by Gia greens.
Thanks in advance.

 

[DaddyKush]

I'm not seeing a problem. The flowers do become darker as they grow, it's normal.

 

[Barney86]

Yeah all sounds and looks normal to me too mate. Looks fuckin awesome actually. Crackin job sir