No - I have not tried a diatom filter. Other than obvious small particles; It looks like just white cloudy water? I have tried a multitude of filter, floss, cotton etc...
Right now I have dropped back to 4 - 30w 9325k total 120w.
I have got a custom to changing 15 - 40% water every 3-4 days.
I have city water. I have regular plants.
Fish: Angels,loaches,shark,tetras,swords/mollies,etc. approx. 120 inches worth.
Two fluval 404, small rock substrate, driftwood, airstone.
Basically, I have exactly what I had in my ole 55g tank with the exception that it remained crystal clear.
I can NOT figure out WHY this tank want clear up. please help