How often should you do a complete clean of a fish tank?
You should also clean your filter cartridges once a month. Every 6 months: Twice per year you should complete a deep clean of your tank and all associated equipment. This means unplugging everything and checking it all out to make sure it is in good condition, including filters, pumps, lights and more.
How often to change the water in a fish tank?
Change 10 to 15 percent of the water each week. If your tank is heavily stocked, bump that up to 20 percent each week. A lightly stocked tank can get by for two weeks, but that should be the maximum length of time between water changes as you do not want to place any stress on your fish.
How many times a month I should clean the fish tank?
If you have a large, well established tank you should clean your tank on a weekly or bi-weekly basis. A water change should be done to the keep the tank clean and the fish happy. Depending on the type of filter you use for the tank, you may be able to get away with cleaning the tank once per month.