Concentrating Phytoplankton

[TvanB1]

I've been culturing my own phyto and was wondering what methods you guys are using to concentrate your phyto? I've been using the 'refrigerator' method. (Letting it settle in the fridge for a few days then filtering it out)
I've got some pretty dark phyto from this but was wondering if there are more efficient ways.
I'm culturing nanno if that helps.
Thanks!

 

[Cory]

I dont culture phyto but a few things that come to mind are andrill centrifuge, or evaporation. The first better than the last.