Home » Tropical Fish Tank » How to clean a tropical fish tank » How to Clean the Gravel in a Tropical Fish Tank How to clean a tropical fish tank How to Clean the Gravel in a Tropical Fish Tank Freshwater-TropicalFish.com December 27, 2015 130 Views 0 The best ways to Clean the Gravel in a Tropical Fish Tank This is part 1 of 2. The 2nd shows ways to clean televisions. 00