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.
or providing fi sh food fl akes, 2. The temperature of the water must be between 72Â° and 82Â° F., 3. Change. approximately 1/3 of the water every 1 to 2 weeks, or as needed to keep the water in good condition, 4. Create. a happy or natural environment by adding things like gravel and plants to the tank. Care of the guppies must be.