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Im about to start my first grow ever and its being done hydroponically. :o Im still confused as to the germination process in rockwool. :?:I know i can place a seed in the rockwool cube and allow to germinate but my problem is after i germinate the seed in the rockwool can i place the cube in...

just got a new meter and it says that i need calibrating solution and storage solution. im pretty sure i need the calibrating solution but do i need storage solution or can i just dry it off and put the lid back on it?