I am going to be doing some major remodeling in my home. My aquarium is very near where the demo is to take place. This will involve removing existing drywall. I am quite sure that a good deal of drywall dust will be created. I planned on covering the tank during this project. I dont like the idea of leaving the tank covered for long periods of time. I intend to provide ventilation and be a carefull as I can, However I am sure that there will most likely be some lingering drywall dust in the air. Any one ever done this near their Tanks? Just how bad is Drywall (gypsum) on our aquariums??