NEED HELP STAT!

Hey Guys,

I want to run phosban in a media reactor for my 55 gallon tank. My phosphates are currently somewhere between 0.1 - 0.25 according to my salifert test kit. Would it be ok to add all of the recommended dosage of phosban at once into the reactor or should I add a little at a time (if so how much?). In my tank I have some mushrooms, ricordea, zoanthids, and a chalice frag. Any input would be really appreciated.

Thanks,
Tory