Today, Australians of Anglo and other European descent are the dominant majority in Australia, estimated at 85â92% of the total population. Historically, European immigrants had great influence over Australian history and society, which resulted in the perception of Australia as a Western country. Since soon after the beginning of British settlement in 1788, people of European descent have formed the majority of the population in Australia. The majority of Australians are of British â English, Scottish, Welsh, Cornish, or Manx â and Irish ancestral origin (grouped together as Anglo-Celtic).
Another more common reason, is that some rocks or gravel are composed of materials that can cause a change in the pH and hardness of your aquarium water, which in turn can be harmful to your fish.
Do two 25% water changes a week. Remove any dead fry or uneaten food by siphoning the bottom of the tank using an aquarium gravel cleaner. To clean the water when the fry first hatch add a sponge to the intake of the aquarium gravel cleaner to avoid sucking up any goldfish fry. Second Two Weeks.