where did you find cultures of those species to start your own? do they have special requirements or are they similiar to culturing nanno and tetra?I have a 120 g SPS-based system and I have been adding around 300 ml of live phytoplankton either daily or each two-three days for several months. The phyto species were Synechococcus and Phaeodactylum cornutum (both cultured with the Easy Reefs modified formula of F2). I have not observed an increase in either nitrates or phosphates. On the contrary, there is a reduction of phosphate.