This cleaner comes in an 8 fl oz bottle fitted with a trigger sprayer for spot cleaning inside and outside an aquarium. The formula is designed to break down white, crusty mineral scale that builds up on glass and acrylic surfaces, hoods, filters, frames, and stands. To use, the solution is sprayed directly onto the surface, left to sit for a few minutes, then wiped away with a damp cloth or sponge before a final dry pass with a clean cloth or paper towel. The liquid is a blue-green formula that mixes with water and is intended to leave a light protective coating that can reduce how quickly new mineral deposits reappear. It is formulated to be non-toxic to fish and safe for use around aquarium plants when used as directed on the label. The product ships as a single spray bottle and requires no assembly before use.