Couldn't load pickup availability
A marine hydrometer provides a simple and reliable way to monitor the density of aquarium water. Since the salinity (salt content) of marine water is directly related to its density, the measured value can be used to determine the salinity level of the aquarium.
Maintaining a stable salinity is essential for the health and well-being of marine fish, corals, and invertebrates. Regular testing helps ensure that water conditions remain within the optimal range for marine life.
Fill a sufficiently tall container or glass with the aquarium water to be tested.
Carefully place the hydrometer into the water.
Allow it to float freely without touching the sides or bottom of the container.
Read the value on the scale according to the depth at which the hydrometer is immersed.
Use the measured density value to determine the salinity of the aquarium water.
Simple and accurate density measurement
Allows determination of marine water salinity
Helps maintain stable water conditions
Easy to use and read
Suitable for regular monitoring of marine aquariums
Supports the health of fish, corals, and other marine organisms
Regular density checks are an important part of marine aquarium maintenance and help ensure a stable and healthy environment for all aquarium inhabitants.
Order processing and verification typically takes 2-3 business days depending on demand levels and product shortages.
The expected time of arrival is 8-15 business days.
You will always receive an email once your order is processed as well as a tracking number.
We have a 30-day return policy, which means you have 30 days after receiving your item to request a return.
