How long can mixed up nutrients sit?? Please help

[gobyebye]

I'm running some house and garden in coco coir and want to know how long I can let them sit until I have to use them.reason I'm asking, is because some of the babies are still very at and others dry, and I don't want to just after them all if they don't need it

 

[stoney917]

Im not 100% with hg but i wouldn't let nething sit for more then a wk.... just check the ph before u use it.... if u added root excel. Id say less time

 

[Coconutz]

lucas was designed so that the res never had to be changed for an entire run
fuck additives
peace