Is this normal for a new pump? I just installed it a few days ago and added water in the tank. This stuff came from the sand or the water from the LFS
. Not sure which one but when I poured water in it started floating around. Should the stuff be getting sucked in like that. Right now I have a protein skimmer and two 565 hydor pumps. It doesn't seem like the skimmer is really sucking anything in.