I've been cycling my tank for about a week now. Today I noticed some buildup in the drain chamber of my sump. It was on the bottom and on the skimmer's pump. I shook the skimmer around and all these particles started floating through the chambers of the sump and into the display tank. I'm pretty sure its sand and I noticed some on the bottom of the overflow boxes too. Is this normal? I'm wondering why this stuff was not caught by my filter socks.
FYI: My skimmer has been off while in cycle.
Thanks.
FYI: My skimmer has been off while in cycle.
Thanks.