i've noticed that my snails and hermit crabs are now getting white dots on their shells. any ideas? (almost looks like dots of white paint all over them.)
When coraline algea dies it turns white, perhaps that's what has happened. I know I had quite a bit of coraline on the glass in my tank, and when I moved it turned white within a couple of days and it came off really easy when I cleaned my glass. HTH