DWC Bhut dropping leaves, is this the end?

[Kerosene]

My DWC bhut jolokia has lost about half of its leaves in the last week. It was looking great up until then - flowering a lot, but not fruiting, but otherwise seemed healthy.
Is this BLS? And if so, should I ditch the plant now to avoid it spreading to my other nearby DWC plants?

2 weeks ago:

Today (leaves aren't as yellow as they look in the photo, see next photo for a more accurate colour):

Leaves:

Is there anything I can do to save it?

 

[bricke]

is your air stone still pumping out air i know when mine get clogged it starts to drop leaves and flowers and as far as the flowers not producing fruit u might want to self pollinate with a damp paintbrush between 12-3 is the best time for that

 

[ajijoe]

looks like edema, it might not be the end

or it may be too much nutrients in you solution, maybe change the water?? not too sure im not a hydro guy

can anyone help??

thanks your friend Joe

 

[CALE4NIA]

Nice looking plant other wise.

What kind of nutes have you been using?

How much? I am new to DWC

 

[Jamison]

You check for whiteflies or any kind of bugs?

 

[Kerosene]

or it may be too much nutrients in you solution, maybe change the water??

Done all that. Cleaned the reservoir and added new nutes a week ago. Haven't seen any improvement.

is your air stone still pumping out air

Yes, air stone is OK.

What kind of nutes have you been using?

GreenDream (link).

You check for whiteflies or any kind of bugs?

I had some aphids a while ago, but they've been dealt with.

 

[Island_Dan]

What is your ph and tds like? Have you measured those yet?