Economical trigger spray for cleaning the aquarium. Cuts through white, crusty mineral deposits. Leaves a protective coating to reduce future maintenance. Safe for fish and plants. Use on both glass and acrylic aquariums.8 oz., Just spray on and wipe off! Quickly handles all cleaning needs on or outside any aquarium. Cuts through white crusty mineral deposits. Use on glass or acrylic aquariums, hoods, filters, frames, and stands. Nontoxic to fresh and saltwater fish.