Changing the Water

You should change the water in the fish tank as regular as you can. It is better to change 15-25% water every couple of weeks rather than wait for the tank to get really dirty and change it only then. The easiest way is to siphon the water out using a tube, when doing this, aim the tube at the bottom of the tank to clean up the waste that accumulates in the bottom of the tank.

All you need to do this is some plastic tubing and a bucket that you place below the water level in the tank. Place one end of the tube in the tank and suck the water, stop before it hits you mouth and aim the tube into the bucket that is below the fish tank, the water will continually pump into the bucket.

Leave enough water for you fish to swim in at the bottom and prepare to fill it up with fresh water. You should leave the new water to stand for a couple of hours or use a dechlorinator in the water before you pour it into the fish tank.