The main difference between fresh water and sea water is that sea water contains a great many salts which give it certain specific characteristics, and these must be understood by any aquarist who wishes to keep marine fish. Sea water Temperature The temperature of tropical sea water varies little over the course of a day, or even a year. Furthermore, marine fish are generally more sensitive to abrupt changes than freshwater fish. The temperature in an aquarium must, therefore, be fairly stable, remaining at around 25-26°C. Sea water Salinity The most important salt found in sea water is sodium chloride (NaCl), widely used for domestic and culinary purposes, but there are plenty more. The salinity of water, i.e. the quantity of salts in the water, is expressed in 0/00 or in g/liter. The mean salinity of the Earth's oceans is around 350/00, or approximately 35 g salts/liter. Whatever its salinity, sea water boasts one remarkable property: the proportion of each element i...
Jacksonville Aquarium and fishing reports directory includes list of best jacksonville fishing spots, charters, licensing information and fishing equipments