about a week ago i had a shrimp die which should have been a sign but i went to bed and woke up to a white tank I mean white I have a 90 gallon and i couldn't see the rocks or anything in it I spent the day doing water changes changing the filters cleaning the skimmer and totally freaking out. There was a white stringy substance everywhere blowing off the jets on the rocks in the filters the skimmer i thought for sure my tank had crashed but i only ended up losing my shrimp the tank is fairly new with only snails, crabs, a brittle starfish, blue croma, and watchman goby. The tank is now clear and most of the white is gone with a small amount on the rock but it seams to be going away. I have no clue what it was or why all my tests were good i checked them and my lfs also checked them they were also puzzled by it, and my lfs usually knows what there talking about. If any one has ideas on what it was or why it happened i don't ever want it to happen again!!!