i use raw when i see deficiencies in my line up, for example phosphorous. I use the phosphorous as a supplement to my existing regiment. It works! But if u ask your hydro shop, they might actually have access to bulk quantity salts. For example, MAP (mono ammonium phosphate) Which is also Phosphorous Raw, but probably a bit stronger, for example raw phosphorous has an npk value of 9-61-0. the other bulk MAP could be something more like 12-62-0 which is the npk of MY M.A.P. And it's also cheaper. Just remember when u buy from raw, you're buying the salts with nice packaging, vs a raw salts in a ziplock bag or something. Both do the same things, the latter could also be stronger, however if you need a quick fix for your nute regiment, they are perfect. But if u do a little research and ask around for a cheaper alternative that does the same thing and sometimes even better, it might be worth it, for example using
MOAB vs MKP in raw form, Same thing, probably cheaper to find MKP as well and depending on where u get it from, possibly stronger than
MOAB. Stronger is not neccasarily a good thing, but you can always use less to compensate. Do some research and if u can get it bulk for cheaper, why not!? but this is just an opinion i have. I do like the fact that they sell things like
yucca and other stuff, amino acids, and so on. but again, you can get bulk for cheaper. just ask your dro store. im lucky to have a dro store that actually looks for these bulks to help out their customers. they only tell u they have them only if you ask for them though. so there's that. they're not gonna say HEY I HAVE SILICATE POWDER AND IT"S WAY CHEAPER AND BETTER THAN THAT
DYNAGRO SO BUY THAT. you'd have to ask for it. haha. but if u ask, they'll sell that to u. they'll still make a buck, but save u one as well. anywho, im rambling. GOOD LUCK ALL. I did use raw solubles recommended from a friend who noticed a deficiency in my plants, and it corrected it right away! they're great if your dro store carries this, but not the bulk!