Hi Chris
I would just to clarify something about the units of Phytos. As far as I know, if in a Phyto group for example in FDIAT, in the file wq_files> fdiat, we choose units Chla, then the units for this Phyto Group, in the initial concentrations in the run_aem3d.dat, must be given to ug/L and the outputs will be in the same units (ug/L). In the case that, in the same model we have and some inflow in the infiles such us the inflowscalars.dat in your Example Lagoon, which contains MDIAT. The concentrations in column of mdiat will must be given in the same units (ug/L)???
Regards
Evangelos