Phosphate Help Needed

[Richie Lloyd]

Hi

Ok so my tank reads 26 - 30 on a Hanna Phosphorus Checker 0.07 - 0.09
My Rowa reactor reads 3 0.009

If I turn the flow up through the reactor the reading goes up so I cant change that.
How do I get the reading down in the tank would I
A) Fill the reactor up (it's currently half full)
B) Add another reactor with the same flow, guessing this should bring the level down to between 13 - 15

Its got me a little confused unless its as simple as I stated above lol
I just thought with the reactor being so low it would eventually come down but ive tested every night and its been the same each day

Thanks

 

[Randy Holmes-Farley Verified Community Expert]

How long have you been running the GFO?

What is the flow through the reactor in, optimally, tank volumes per day? Or fraction thereof?

 

[Richie Lloyd]

Thanks for taking the time to reply buddy

This is the reactor
http://www.theaquariumsolution.com/fmr-reactor-instructions
It is half full of rowa
I don't tom it with that pump tho use a little 350 I think it is New Jet pump

Tank is 800 litres / 200/210 US gallon

 

[Randy Holmes-Farley Verified Community Expert]

I cant judge the flow from afar. You'd need to measure it to know how adjustments might help.

 

[Richie Lloyd]

OK
Dont know what the math is here but
I checked the effluent flow and to achieve the zero out put I have to set the flow to 20 litres an hour. Tank is 800 litres approx

 

[Randy Holmes-Farley Verified Community Expert]

OK
Dont know what the math is here but
I checked the effluent flow and to achieve the zero out put I have to set the flow to 20 litres an hour. Tank is 800 litres approx

You need not have zero reading.

If the tank is 0.1 ppm, then 20 L per h at 0.05 ppm effluent accomplishes the same as 10 L per h at 0.00 ppm.