I have had this 3g mummy eye for 5 years+ never an issue. In fact it has lived through most of the trauma my tank has gone through, almost any kind of problem my tank struggles with this chalice lived and thrived.
Now it has black spots that appeared almost over night! What can I do to save this it’s one of my favorite pieces?
Now it has black spots that appeared almost over night! What can I do to save this it’s one of my favorite pieces?

