Sorry.
The algae freshwater is about microbiome and omega 3 ALA.
And MICROALGAE freshwater (phytoplancton of CLEAN water, away from human), detoxifies of heavy metals.
If fishes of the sea has heavy metals, is because human are polluting the sea, microalgae of the sea is cathing them, and fish eating the algae with heavy metals.
If we drink clean microalgae of freshwater alive, created in laboraroty, you Will drink secure phytoplancton without heavy metals, that Will catch heavy metals When you Drink.