Sand is a common pollutant in aquariums, and it can be difficult to clean it without causing damage to the fish. Here are some tips on how to clean sand in an aquarium:

  1. Use a vacuum cleaner with the hose attachment to suck up all of the sand and dirt from around the aquarium.
  2. Use a plunger to push all of the sand and dirt out of the way so you can get at the cleaning solution.
  3. Pour 1 cup of water into a pot and set it on medium heat. Add 1 tablespoon of baking soda and 1 tablespoon of salt, and stir until everything is mixed together. Pour this mixture into a small bowl, and set aside.
  4. Pour 1 cup of water into another pot, set it on medium heat, and add 2 tablespoons of baking soda and 2 tablespoons of salt. Stir until everything is mixed together again. Pour this mixture into the small bowl that you just made, and set aside again.
  5. Add 1 teaspoon of bleach powder to each pot if you want to use bleach instead of baking soda or salt for cleaning sand; however, be sure to test each solution before using it in an aquarium! Bleach will kill any bacteria that may be present in sand, so make sure you have enough left over for future use!