Instant Ocean Clear Aquarium Hydrometer

Ensure a thriving marine aquarium with Instant Ocean Hydrometers. The Instant Ocean Hydrometer, a top choice in fish tank aquarium supplies from Instant Ocean, delivers precise salinity and specific gravity readings with ±0.001 accuracy. Easy to use and read, this hydrometer features a clear, two-colour scale with a safe zone and an extra-wide stabiliser base, making it a reliable tool for maintaining a healthy saltwater tank.

• The Instant Ocean Hydrometer is typically made from clear, durable plastic with a swing-arm pointer and integrated sample chamber. Its design includes an extra-wide, stable base and easy-dip profile, allowing repeated use in saltwater without corrosion while keeping the user’s hand relatively dry.

• Keep the hydrometer out of reach of children and pets to prevent damage or accidental misuse.
• Rinse the hydrometer with fresh water after each use and allow it to air dry to maintain accuracy and prevent salt buildup.
• Avoid dropping, bending, or exposing the hydrometer to high heat, chemicals, or direct sunlight, as this may warp the plastic and affect readings.
• Use only in aquarium water; do not use it for drinking water testing or any purpose other than hobby/aquarium applications.

Use Instructions:

• Rinse Hydrometer With Fresh Water Before Using.
• Slowly Fill Hydrometer By Dipping Bottom Corner Fill Port Below Water Surface Until Water Flows Up And Over Inner Weir.
• Dislodge Air Bubbles By Tapping Hydrometer, Or Pointer, Gently With Pencil.
• Placing Hydrometer On A Level Surface, Read Specific Gravity (Inside Scale). For Most Marine Aquariums, Recommended Specific Gravity Is 1.020 To 1.026.
• Rinse Hydrometer With Fresh Water Before Storing.

Care And Cleaning Instructions:

Periodic Cleaning Is Recommended To Remove Deposits That Can Accumulate On Pointer, Causing Inaccurate Reading.

1. Soak Hydrometer In Mild Acid (Vinegar) For 30 Minutes, Then Rinse.