White, fish-smelling, lime-like deposits on aquarium glass
As i was doing my routine weekly water changes when i noticed there was a white residue on the glass which stank of fish. At first i thought it to be some kind of algal growth as it was translucent when exposed to water which blurred whatever was behind it in the tank. But now i am a little confused because i looked it up and some say it was a lime deposit but i am curious about that fishy smell. I'd really appreciate it if someone were to know what this was, thanks!