Your aquarium water may be cloudy for a number of reasons, to begin it depends on the colour of the water. If it is a green then most likely you have green water, an annoying type of algae that
updated-For a planted tank 8-10 hours a day will be more than sufficient. Be sure to keep the tank out of direct sunlight as this will only promote the growth of algae in the aquarium. Don’t leave the aquarium lights on for 24 hours a day, the fish and plants need to respire and rest. This would lead to the eventual death of fish and plants.