1. Okay, let me think, your fish tank water has turned cloudy? Please do not begin panicking, this is an extremely typical incident and every fish keeper will experience cloudy water at some phase.
Typically the water takes on a grayish to whitish pigmentation. A lot of typically, it is simply a thin haze, however in truly bad cases it can get so thick that you can’t see the background.
The most typical cause of cloudy fish tank water is dust and particles included in sand or gravel. It’s entirely difficult to get rid of 100% of dirt from the substrate so it’s unavoidable that it’s going to get into your fish tank.