cycling question

[czinn]

Hello all
I am not sure my tank cycled and wanted to ask here to be on the safe side. A little back ground it is a 150 gallon tank with a sump, 100 lb of dry sand, 25 lb of dry rock and 175 lb of live rock from a established tank that had a glass failure it was maintained in a tank with heater and power head for 2 days before I added it to my tank. On the 6th every thing went in plus a deli shrimp on the 7th Ammonia 1 ppm Nitrite 0 ppm Nitrate 0 ppm. 9th Ammonia .5 ppm Nitrite .5 ppm Nitrate 20 ppm. 10th Ammonia .5 ppm Nitrite 0 ppm Nitrate 0 ppm. 11th Ammonia .25 ppm Nitrite 0 ppm Nitrate 0 ppm. 12th Ammonia 0 ppm Nitrite 0 ppm Nitrate 0 ppm. What are your thoughts.

 

[thegrun]

Because the majority of the rock came from an established system the cycle was small and short. I would give it at least three or four more days before adding livestock, but assuming you do not see any ammonia or nitrites during the next four days you should be fine to slowly start adding livestock.

 

[czinn]

Thank you