Marine aquarists use a hydrometer to measure the specific gravity (SG) of the seawater. The hobby hydrometer is not a pure scientific instrument but is capable of sufficient accuracy to enable stability of the SG – provided the aquarist does at least a weekly check. Marine aquariumsRead more →
When you start a saltwater aquarium one of the things which you must do is maintain stability.
The hydrometer is an essential item when it comes to saltwater aquariums. A hydrometer allows you to measure and record the salinity of the saltwater. The saltwater which is both in your aquarium and which is prepared for water changes.Read more →