Last week I started a 46 bowfront with instant ocean mix and a power head. I left it running for a week no fish or filter and I have developed a hard glave over the inside of the tank especially at the bottom. I was able to wipe off the sides of the glass but the bare bottom is real hard almost like I will have to get a razor after it. It is like the salt had dried, sounds stupid I guess. Has anybody else had this problem?
Please Help
Please Help