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.
Bowl or Tank. While small bowls are sold in pet stores for betta-keeping, providing at least a 10 gallon tank -- complete with heater -- for your betta is a healthier environment and probably will add to his life span. Keep the tank temperature between 72 and 80 degrees Fahrenheit, and the pH level between 6.8 and 7.4. A few live plants in the tank, such as java fern, provide an area for your betta to hang out. While you can keep betta fish in a tank with other, compatible species, that doesn't include other bettas.