Has anyone using bio pellets have them all float up to the reactor and stay there? They just stopped tumbling. I have been using them since Aug 20, 2011, so about a month now. They were tumbling very nicely and then I checked to see how they are doing and they where all floating together. They are not clumped up together. I opened the reactor and took a stick and sturd them up to make sure they werent stuck together and they all fell to the bottom. I turned the water back on to it and they all floated back up to the top again. Does anyone know why? I am using the tlf reactor and BRS pellets.