White cloudy water is often known as 'new tank syndrome' and will eventually clear away, however eventually can range from days - weeks - months as your tank balances itself again.
It can be exacerbated by rotting leaves and left over food.
Vacuuming and small regular water changes can help it but if you can not bear to wait you can purchase a flocculent from your LFS, which binds the small algae particles which the filter/vacuum can not pick up, into larger masses which are more easily removed. This is sold as water conditioner.