How quickly should phosphate show after Reef roids?

[DesktopReefer]

So I’m running a bit of an experiment on my tank right now. Long story short, before I added reef roids, my phosphates and nitrates were undetectable. 24 hours after added the recommended dose, they are both still undetectable. For people that have seen a spike in phosphates after feeding reef roids, how quickly did it show up on your tests, how long did it stay elevated, and did it decrease on it’s own?

 

[NowGlazeIT]

For me it would show up after 2-3 hours and it would only last about 20-24 hours

 

[NowGlazeIT]

1 scoop would bump my phosphates up .03ppm in a 150g total water system

 

[Anderson3122]

It goes up in several hours, but is under control with GFO over time

 

[DesktopReefer]

Thanks for the input folks. So basically we’re talking a matter of hours, not days.

 

[Reef and Dive]

6-10 hours in my tests. Raises more after 24h

 

[REEF_TO_KEEP]

I have been using ReefRoids (half the recommended dose) for months. My phosphate has increased from 0.03 to .15ppm. Nitrate does not increase much. There are times when I brought the phosphate down but after the feed, it went right back up. Too much phosphate in RR. Someone recommended me to use Benepets reef food instead, I will try Benepets and see how it goes.