How much phytoplankton to dose?

[LesPoissons]

Hey guys,
was going to try dosing phyto (again). Does anyone know what the "correct" dose is? Does it go by gallon? My tank is a 220G with a sump- probably about 250g total water volume.

 

[dank reefer]

Here is a link for a recommendation from Poseidon Reef Systems

Phytoplankton Dosing | Poseidon Reef Systems

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[LesPoissons]

Thanks!