I'm not keen on the idea of buffered nutes in my NFT tanks as I hear there is no one pH where all required nutrients are available to a plant and fluctuations are required in order to allow the full range of nutrients to be absorbed.
There are products like phix-it (IIRC) that can be used to buffer pH to 6.0 but it raises EC and the boys at the shop suggested it was ok if I was going away for a few days but that was all I should consider using it for.
There are products like phix-it (IIRC) that can be used to buffer pH to 6.0 but it raises EC and the boys at the shop suggested it was ok if I was going away for a few days but that was all I should consider using it for.