Hello Jas...
If the tank has been up and running for a while, then add a dense poly fiber to the filter system and replace it at least every couple of weeks. Acurel and HBH have good products. Start getting into the habit of removing and replacing half the water in the tank every week. The poly fiber will attract and hold the small particles that cloud the water. What particles are missed by the filter will be removed when you change the tank water.
Pretty simple.
B