MERRYHAPY 2Pcs Aquarium Glass Floating Hydrometer for Accurate Testing Fish Tank and Aquarium Easy to Use for Sea Water Measurement

Saltwater hydrometer--it is easy to use and suitable for fish tank and aquarium,hydrometer

Saltwater aquarium--made of glass material which can directly with water,hydrometer for saltwater aquarium

Aquarium accessories for fish tank--placed in any corner of the fish tank, floating design, automatic temperature/ testing,aquarium hydrometer

Hydrometers salt water--in the aquarium, it is convenient to measure the specific gravity of the sea water and provide convenience for raising fish,aquarium hydrometers

Fish tank--it is convenient to test the specific gravity and temperature of water,fish aquarium tank