...moving this to the Infirmary mate,... can you get me pics in normal light? HPS is lousy for diagnostics, color is a big clue,... I do see the tip claws,... and OF is often as not too hot for seedlings,.. worse,
soils are not to be trusted IMO, these days,... testing their soils, I get pH's in the low 5's-
- which is just inexcusable,.. quality control with them is a dice toos anymore,.... some folks get lucky and their bags are OK, I figure because of the different sourcing at the different facilities,...
.... You need to get an in-pot pH, what you put in ahd influence on inpot pH, but doesn't dictate it, too many other influencing factors,.. the best tool for this is the Accurate 8 soil pH probe,... the run-off method is dubious at best,... do you have a pH meter? you could do a slurry test for pH...1 cup soil, 1 cup unadjusted water, mix and let sit for an hour; drain off liquid and test,.. make sure your meter is calibrated! ...they go out easily,... wierd that you're just now getting N-tox,.. nothing added at all, even Ca-Mg? Some of those have significant amounts of n in them,...