AquaVitro - Eight . Four - 5.07 OZ is backordered and will ship as soon as it is back in stock.
Many competing buffers for reef aquaria are simply sodium bicarbonate. Such buffers have a pK of only 8.0 in saltwater and simply are unable to maintain a pH above 8.0. The low buffering pK is a function of the low carbonate/bicarbonate ratio.
