ph? ppm? distance to light?
u use that medium, before?
what kinda light?
diox? ppm?
r.o., or tap?
I'm in a diff medium, but if i got anything, I'll letcha know.
usually, I'm askin for closer shoTZ!!!, however, this time- might help, if u took a step back, to get the whole gal in... container n all. just more perspective.
it's salvageable. prolly the last time it happens to u, too...
what's your feeding/watering, routine? no- they don't look moisture afflicted. just askin... not all growers, feed, equally... can cause issues.
that an advanced feed/medium? if so... u ready for it? have a mentor? lookin for one? someone, in the same medium...?