Water Requirements
- Although it is possible to use natural sea water, plankton often ends up in the tank when you use natural ocean water. The plankton quickly dies in the confines of an aquarium and pollutes the water. Natural sea water may also contain disease-producing organisms. Use a high-quality synthetic sea salt to negate the problems associated with collecting water from the sea. Mix synthetic sea salt with reverse osmosis (RO) water, as tap water typically contains nitrates and phosphates. Reverse osmosis water is available from your aquatic dealer. You can gauge the specific gravity of sea water with a hydrometer, which should show a reading of 1.025.