Phytoplankton Fuge?

[sixty_reefer]

Yea I meant full on like the plan is here to include a UV sterilizer to bring tank water back.

To be honest I don’t think is hard, probably all you need is a 0.5 sediment filter, the same ones that you use on ro machines, if it can remove bacteria it will easy remove any zooplankton that try’s there way to the phytoplankton culture. Not to mention more efficient than uv alone.