I bought the bubbleponics system from stealth hydro and was wondering if I add nutrients straight to the water. I had advanced nutrients 3-part system to which I added to water and watered directly to the soil. Now that im dealing with a 6 gallon tub, can I add these same nutrients to the water directly or do I have to use powdered mix. Will I have to clean the system due to salt build up? (I noticed salt build up with growing in soil which is the only reason I ask about cleaning).

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