Join Date: Jun 2012
Location: Gainesville, FL
I inherited an old reef tank. It had been left to evaporate down leaving hardwater lines. I cleaned the glass with straight vinegar until it looked clean. Now several months later the lines and stains are back. It makes for a cloudy appearance despite the water being clear. I have tried razor scraping and scrubbing with various "scrubbies" but nothing seems to work. Is my only option to dismantle the tank and use harsh chemicals to remove it such a CLR or the like? Any ideas?