I recently added an oscar into my tank. He is about 2 inches long at the moment. He seems to spend a lot of his time laying on the bottom of the tank, or in a corner behind bogwood. Then every so often he swims around the tank for a while before going back to his corner. He is eating and looks to be healthy. So, is this normal behaviour for an oscar, or is something up? He has been in the tank around 24hrs now.