I’ve done this on many many occasions. The only thing I’ve ever notice be bothered by the precipitate are anemones. They bounce back but definitely don’t enjoy the first couple hours after dosing. It does work like a charm and if you follow the directions removes exactly what it says it will.Phos .26
Guess I gotta change out the rowaphos again...
Injecting lanthanum into the skimmer like rich was talking about sure does sound appealing right about now...