I usually use dyna gro, however my local store was out of the bloom formula. I was told to try the botanicare CNS17 bloom so i said screw and bought it. I took it back and i was surprised to find it was a milky creamish color and left a white residue on the bottom of my res. Is this normal?? Either way i will be switching back to my more preferred Dyna Gro ASAP. All help is appreciated. Thanks.