white stuff on corals after target feeding marine snow

[mazon56]

i target fed marine snow yest to my corals and my acanthephylia, wellso, frogspawn, monti, and some acans have like a white film (white s**t) on them the worst one is the acanthephylia. is this normal from target feeding. this is the 1st time i did it. im a lil scared my corals arent doing good.