Hint of green on FV lid

[samsdaddy]

Hello again,
I have just checked my batch of Brewmaster Pilsner, I now have a AG of 1.006 after 7 days, I have decided to put it straight into the fridge to attempt a "cold crash". I'm slightly concerned because I noticed a hint of green discolouration on the lid of my FV. Has anybody else experienced this, being a newbie I'm automatically paranoid and I fear that it has become infected.
Any help and advice would be appreciated. Thanks Wils

Cheers

mark

 

[savagedavid]

Does it smell like beer and does it taste like beer? If it ticks both those boxes then it is okay. You will taste very quickly if something is wrong...