Anything you cap aquasoil with will eventually end up mixed in with or below the aquasoil unless the grain size is larger than the grain size of the aquasoil.
Ya i had the same problem with new aquasoil. When it settles down the cloudiness will go away. I would check your flow though too it shouldnt be disturbing the substrate.
Are you using Amazonia I or Amazonia II? There seem to be a lot of bags of defective Amazonia II which break down easily and prematurely leading to water clarity problems beyond the normal start up period. The grains that are falling apart tend to be reddish brown like the ones I see in your picture. If it is Amazonia II you may be able to get it replaced depending on where you bought it.
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