A about 2 weeks ago i changed my cold water tank from stones to coral sand. Its was all going grand up to about a week ago when the water started going white. My fish where acting wierd as well they just stayed at the bottom hiding. yesterday i gave the tank a water change around half of the tanks water i took out. i refilled it its not as white but still is a bit white. Is there anyway of stopping the water going like this and whats up with my fish? ![sly :sly: :sly:](/images/smilies/ipb/sly.gif)
![sly :sly: :sly:](/images/smilies/ipb/sly.gif)