Today is the 3rd day my 55 gal. has been cycling. I got nothing in it other than saltwater running thru the ecosystem sump. This morning the water is white! there are white specs of "something" floating in the water, I picked up the "something" with a paper towel and on it it looks like yellowish, curdish milk. I'm sorry I'm not able to post a pic. Please help, what's this pest? Thanks