How should I properly clean the bottom of a fish tank to maintain a healthy environment for my aquatic pets?

To properly clean the bottom of a fish tank and maintain a healthy environment for your aquatic pets, you should use a gravel vacuum to remove debris and waste. Regularly vacuuming the substrate will help prevent the buildup of harmful substances and maintain water quality. It is also important to perform partial water changes and monitor water parameters to ensure a clean and healthy environment for your fish.