Plants curling down and spotting

I have a custom strain that is new clones, they started doing this for the last couple weeks. The set up is a DWC hydro kit with a 1000watt HPS.

mine are doing the same thing im not to sure if i have my light to close. or if its not gettin water

Are those the fresh clones or are those like a few week old clones? I mean have they rooted yet? Do they have roots in the res? Anything floating around in res? Does the res smell? How far is the light away? LoL need more details man!

There was a fly I found in the lower reservoir. THere are alot of roots for each plant, all health looking.