bmwaaron, I am also running this pellets. I did get a bacterial bloom after a few days and it lasted about 3 days. My system was at 5-10 nitrates and 0.1 phosphates when i started. After 5 days using this product both went to zero. I would recommend trying to run the output of your reactor thru your skimmer is possible. I did this and seems to be going good so far. Also looking at your reactor those pellets building up at the top need to be moved down or removed they all need to be tumbling from i have been told. I believe the none tumbling pellets are what cause the bacterial blooms since i found a few just sitting in my sump from when the pump to reactor started up. I removed them and the bacterial bloom was gone soon after. So good luck and keep us posted with your success.