I have 4 african cichlids all doing well they are in a 60 gallon with a 110 aqua clear filtration system.all my chemical values are good ,the amonia was just at the point where it could be reaching the high limit,the cycling went well its been 6 weeks and i noticed a hint of cloudiness in the water so I did a 20% water change and its been 2 days and the hint of cloudiness is still there.
any suggestions
any suggestions

)