1944 - Universal adult suffrage introduced; new constitution providing for a popularly-elected House of Representatives promulgated. 1958 - Jamaica becomes a member of the British-sponsored Federation of the West Indies. 1961 - Jamaica withdraws from the Federation of the West Indies.
Guppies prefer a hard water aquarium with a temperature between 25.5Â° and 27.8 Â°C and salt levels equivalent to one tablespoon per 19 litres.In fact, they can withstand levels of salinity up to 150% that of normal seawater.uppies prefer a hard water aquarium with a temperature between 25.5Â° and 27.8 Â°C and salt levels equivalent to one tablespoon per 19 litres.
If you are thinking about or all ready have a tropical freshwater aquarium, the temperature should be kept at 77 degrees. Check with your sales representative at your local fish store for the best temperatures to keep your fish and live plants.ther fish, such as Goldfish, will require cooler temperatures that range from 52 to 65 degrees. So mixing Goldfish with freshwater tropical fish will not lead to a successful conclusion. Keeping fish at their ideal temperature will help keep your fish happy and healthy.