noob qestions regarding mixing the nutes.

Starting my first DWC. Have been surfing the net getting alot info.

As in soil im not planing to max the nutes on day one. So one question is it duable to premix and store water with the nutes and use it in different strength

Or does the nutes get bad if I store a batch in a dark room?

no mix em up as you need them, with out air from an air stone your premixed nutes will not have a long shelf life...