Plant 1 no issues, so eliminates the strain.
Clone 1 no issues until I put it in reused soil. Limits options.
Clone 2 taken from problematic plant put in same
promix only difference is it's rinsed, clone grows new leave unaffected. This eliminates a virus. If clone 1 got virus then a clone from that plant would have same virus
What's left? Salt. The
promix was a tub I had been saving for many grows probably 8-10 different plants after harvest would uproot and shake the remaining
promix into the tub. All 8-10 plants (different strains) showed the striping mid to late flower. Seems that's about the time it would take for salt to build up.
Clone 1 got issue early veg as soon as I put into non rinsed reused
promix. Idk what else it could be if not salts?