What's wrong with this growth?

Roots look good don't they?

roots ok, leaves no.

Did they get dryer than normal recently?

Looks like nute burn at the tips and a deficiency of something where the rust colored spots are. I had a similar thing happen before, wish I could remember what the cure was. Good luck. There's a good guide to plant problems on GrowWeedEasy.

Baydestrian707 said:

Roots look good don't they?

Click to expand...

Looks like it could be nutrient lock out. Empty and start back up with nutrient levels lower.

The technique itself seems to be problematic.. You can't run a decent DWC with soil. the soil zone will be flooded AF and the plant will die. The root zone in the DWC basket ( with clay pebbles ) should stay dry when the roots zone are well developed. A good way to start seeds or clones in DWC is to run them in soil for the start and then wash the roots zone and transfert in 100% clay pebbles.

Kinds looks like rust fungus or am I wrong?

Picture please