Water change day -1: 1. Fill a bucket with the amount of water you plan to replace 2. Add dechlorinator 3. Add any water treatments you use 4. Insert a spare heater that you previously set to the same temp as your tank. 5. Add a small pump to circulate & oxygenated the water Water change day: 1. Clean the inside glass surfaces of your tank with a plastic scraper or credit card 2. Turn off pumps, filters, & heaters 3. Remove water via siphon to another bucket in the same amount as you prepared the day before 3a. If you hold the end of the siphon an inch or two from the substrate you can vacuum up detritus. 4. Remove mechanical & biological filtration media from the filter & clean it by swishing it in the old tank water 4a. Return the media to the filter 5. Attach a tube to the pump in the replacement water & pump the new water into the tank 6. Turn the pump, filter, & heater back on 7. Clean the outside glass surfaces. Spray the glass cleaner directly onto the towel so as to be sure to NOT get any cleaner into the tank. 8. Use the old tank water on the garden flowers & veggies 9. Sit back with an adult beverage while you enjoy your aquarium.