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Hydroponics CANNA ADDITIVES PK 13/14 Plant Nutrients 5L Litre

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? For southern AG gff users

I add southern AG gff every time I top up my rez. Is this wasteful? Will the existing population of good bacteria left in the rez make up for the addition of new rez water?

Should I only add when completely changing and cleaning rez?


from Hydroponics / Aeroponics
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