Hello I am just getting started with dry ferts (thanks to Orlando from GLA) and now going to use the PPS Pro Solution. I will be using a 500ml bottles to mix in (macros and micros). The question I have is how long is the mix good for once I combine each of them in the bottles? Do you need to refrigerate or anything special with it once it is mixed?
The CSM+B tends to get fungus quite easily. I keep both solutions in the fridge but the CSM+B will develop fungus after about two weeks so I make it up in smaller batches. I haven't tried the fungus treatment.