I wanted to know IF i should or can use silica,cal/mag and Chaching all at the same time in addition to my FF
Yes. Mix silica first and let it sit for about 20 minutes, before adding nutes. Then add nutes, then pH, then microbes if any.
Silica will skyrocket your pH, so make sure it is mixed reeeeeally well before adding nutes and sits so no damping occurs
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So you think its ok to use all 3 during flwer?