Fish tank water change on a 108 gal. aquarium. 1. fill bucket tupperware tub with tap water - add tap water conditioner to remove chlorine and detoxify heavy metals. 2. Let water sit for two days. This does two things - brings water temperature up to room temperature and it will make sure all chlorine is gone. 3. Make sure new water is the same PH and temperature as the fish tank water. ( these three steps will reduce stress on the fish) 4. Unplug your fish tank water heater before you begin draining water out of your fish tank.... Jan 30 2011nbsp018332Fish tank water change on a 108 gal aquarium 1 fill bucket Cleaning Your Aquarium Performing Your Weekly 10-15 Water Change For all of you who fish tank water change aquarium fish care Part 1 Fish tank water change Discover Fish Tank Pet secrets tips and facts A for beginners and fish hobbyist on Setting up a Fresh Water Fish Aquarium Keeping Fish as Pets This page gives a basic guide to setting up a fresh water aquarium using a Keep your fish healthy by changing only part of the water in your fish tank Jul 29 2009nbsp018332How To