At present, I am using a fluidized sand filter as my bio-filter. I also have 3 inches of Seachems flourite gravel for my plants.
I believe that the sand filter that contains silica is causing cloudy water and I do see a faint color of tan on the front glass. I use Seachems "Clarity product to remove the cloudyness and I clean the filter media after the water clears up. But by evening, the water starts to get cloudy again. So I am looking at this sand filter as a possible cause. I am going into my 5th week with this problem.
So I am thinking of disconnecting the sand filter and allow my gravel bed take over as a bio-filter. I have no way of knowing how much work the gravel is doing as a bio-filter because it was sharing some of the work.
The questions: would the gravel make a good bio-filter by itself?
Should I put bio-chem stars in my cannister?
What do I do about the fluidized sand ? Would it be helpful if I place it in a fine mesh bag and allow it to sit on the gravel to help seed it more?