Just a thought but how were these filters matured? new tank syndrome always comes to mind when i hear "cloudy water"
especially considered the bioload on this system,
and to answer your original Question, - No
Had to go back to see what the original question was,... but, yea... that's the answer I'm interested in... All three filters had been in operation for at least 6 months.... Well cycled and matured... (I would think)