Buildasoil 3.0 – Water only or add nutes?

I am wondering if anyone can tell me if I can get away with using the buildasoil potting soil version 3.0 with just DI water or RO water. I am planning on only adding recharge if possible to keep my costs to a bare minimum. My question restated: Can I use the buildasoil 3.0 with only water or should I add nutrient feedings every now and then? Is recharge every other watering enough to get me through with no other nutes?

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