1. Okay, let me believe, your aquarium water has turned cloudy? Please do not start panicking, this is an in fact normal event and every fish keeper will experience cloudy water at some stage.
Usually the water handles a grayish to whitish coloring. A great deal of usually, it is just a thin haze, however in truly bad cases it can get so thick that you can’t see the background.
The most common part for cloudy aquarium water is dust and particles consisted of in sand or gravel. It’s definitely difficult to eliminate 100% of dirt from the substrate so it’s inevitable that it’s going to get into your aquarium.
