What is going one with my plant?

[denmason]

I'm seeing spots on some of the older growth leaves of my plant. I think it may be nute burn, but a friend says I have bugs. I looked for bugs but have not found any evidence. My other plants do not show any spotting at all and they are fed from the same reservoir. Should I flush? Should I remove the ailing plant? Here's a couple pics. Please help.

 

[bucktoothal]

What kind of nutes did you use?
yes you should flush.and keep your fingers crossed. I have seen plants come back to life after something like this. if this plant does make it you will have to put into flower at a later date than the others.

 

[denmason]

Thanks bucktoothal, I have everything under control at the moment. Did a flush and all seems good now. Plant is making a great recovery and I will post pics when finished....

 

[McCrackin]

Looking forward to the pics.