J've always used a tough fish to cycle my tanks, but two years ago I decided to try Tim's system. I first added the dried white rock, laid down the live sand, it cycled in three days. Then added Tim's product and it was also cycled in three days. I started by adding two paired Clowns and it all went very well. I don't believe it's better than quality and well seasoned live rock, it just will take many months to years to become a balanced ecosystem.


