cloudy water

  1. S

    Cloudy Water

    Hi, I have just started a saltwater fish tank, I am using Bali sand which I have rinsed through with about 30l of water. I have started adding my RO/DI water but the water is very cloudy, I have left it around 12 hours and it is still the same (photos attached) Is this normal or do I need to...
  2. L

    Is this algae? Or a toxin permeating the water? Help!

    Hi, Im new to this forum. Im here because a year into running a saltwater aquarium without issues, a significant issue has arisen- cloudy green / white water. It has been this way for 3 weeks. At the bottom of the tank, the water is lime green, and fades into a cloudy white gradient as you get...