I use IO, but once in a while I trow in a bag of Seachem and my corals (mostly SPS) react to it positively.
Seachem is really high in Borate (used for buffering), so I wouldn't use it exclusively.
__________________
Denis
150g SPS reef;3x250WHQI,Tunze Streams,Wavebox,Neptune Apex,fishroom in basement  ,reefing since 93,SPS since 99.
TOTM June 2010
|