Phosphorous ULR Reading

[PingG25]

I've been testing my water for Phosphorous with Hanna ULR. Using Rowaphos in my reactor it's barely moved over 10 days since I refreshed Rowaphos going from 12 (0.037) to 10 (0.034). So the question is, has my Rowaphos been fully exhausted in 2 weeks, could I have too little in the reactor or could the flow too strong. And I suppose finally, am I expecting too much from Rowaphos?


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[bertoni]

In a tank with significant phosphate, the media can be exhausted in a few hours. The phosphate measurement can be a bit off, as well, but I suspect that the system needs more RowaPhos if you want to drive the level lower. That might take a lot of media, though, if the sand or live rock has adsorbed a lot of phosphate.

 

[PingG25]

Thanks. I've put some Kent sponge in for 24 hrs which should reduce Phosphates. Then monitor the Rowaphos performance with the Lower Level to see if it increases.


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[bertoni]

Okay, sounds like a good plan. Good luck!