Back PetsTakealotHappyFish H-018 Sea Hydrometer Salinity Specific Gravity Test for AquariumR 374.00Takealot ยท checked 10 days ago View at Takealot AverageR 422.05Lowest seenR 342.00Highest seenR 444.00Last changeR 32.00First indexed10 Oct 2026RetailerTakealotPrice history