Just order your Nutrient formulation custom mixed. It is definitely not rocket science. All the standard fertilizers with out amino acids can be bought in a dry for for about $8 to $12 a gallon including shipping. You can but all the "supplements" in Canada for cheap.
http://www.super-grow.biz/IBAK.jsp
Do you realise for a fertilizer like AN or GH two part your only getting an average of about 2.2 pounds of fertilizer per gallon. That means it is costing them about $1 for the fertilizer salts. Hell they likely spend more on their plastic bottle and their labels than they pay for the fertilizer salts. Go to the link above and you can see the supplements are also cheap. mj specific nutrient manafacturers like AN, Dutch Master, GH and Canna etc are just parasites taking while the taking is good. If and or when they have to compete with U.S. fertilizer manfacturers selling advertised mj specific nutrients they will simply close up shop and retire. There is Humboldt but they are overloaded with ammonium so are really better for outdoor growth and lower lighting system and colder grows. Even then if you lok at their Masters it is just GH or AN two part with a but load of ammonium and too little Nitrate nitrogen. And for that they charge $72 per gallon.
Glad I mix my own.
