Rubidium 120 mL - Trace Element for Saltwater Aquariums
Ideal for advanced aquarists seeking complete seawater replication. Product Strength (µg/L per mL in 100 gal) × 100. Product Strength = 0.40 µg/L per mL in 100 gal. Strength = 0.4 µg/L per 1 mL in 100 gal.