i have never heard of these products. that other thread contained a lot of information about the different types and their ingredients. is there any definitive data their use can cause contamination, even if flushed properly? i imagine they aren't approved for use in cannabis in canada (only 17 or 19 products are, but they're mostly all poison not intended for consumption too) but people are probably using them.
does it decrease quality/thc in exchange for yield? or does it increase yield and THC? if it's not showing up as contaminant in lab testing i don't see an issue with it. it's not like i'd drink any of the nutrients i give my plants. will have to look more in to it. but food crops don't practice flushing (i'm not sure if any other crops practice flushing?) and cannabis for the most part isn't ingested as a food
i don't sell or intend to so i might consider using it in my own crops after more research. i would disagree with using it undeclared in crops for public consumption or as medicine though. i imagine OC likes that kind of stuff.
edit: i did have bud one time that was rock hard and nearly impossible to bust up even with scissors - coffee grinder necessary. also had a weird chemical taste and caused throat irritation and cough. wonder if that was why