so i quess polyfilter's are not what they really claim they are worthy off ya.....
Polyfiltersd make lots claims, but IMO, what they are good for is binding metals when metals are excessive.
if GFO produce fine Iron chalk that binds to PO4 but still remain within our tanks, i'm sure they'll settle on some surface with the bindered PO4 on them which might possibly cause algae to perhaps use iron and po4 to make food and make matters worst.... is that possible or am i now starting to get paronoid.....
It is possible. That's why IO recommend rinsing it well first. But some will always get out, and I don't consider that a big deal.
how about dripping lanthanum chloride just B4 my beckett style skimmer??? would it have enough contact time to pick up po4 within the skimmer body and extracted in time b4 exiting out as clean water.....
The concern may be, like limewater in a skimmer, precipitation inside of it.
Bear in mind that lanthanum chloride will deplete alkalinity.