Sea Water for 424 Posted on December 4, 2024June 24, 2025 by Jennifer Ye 2 carboys SeaWater (31-35ppt salinity): 31-35g InstantOcean Reef Salt in 1 L Submerge a bubbler or a pump so that it is constantly being mixed Nematostella SW is 1/3 ASW F/2 Medium for algae (424) Acid Buffer for Seawater