the acadama has been quite good in this tank. It was however "run in" before i used it as it had already been in the tank for afew months before hand when I had some wood and spare plants in there. The only problem ive found with it is that the granule size is too big and that its not as easy to plant in as ada aquasoil. next time id probaby just buy a bag or aquasoil or oli knott to try.