Best way to lower Phosphates without lowering Nitrates?

[Randy Holmes-Farley Verified Community Expert]

I agree a 50% water change will drop nitrate and phosphate by 50%, but phosphate may rise back up close to where it was even with no external inputs.

 

[SauceyReef]

Update: Live Phyto and extensive tank cleanings (blowing out any dead spots) was the only thing that started bring my Phosphate down over a year. As Randy is saying a water change wont do much as it will reabsorb back into the water right away.

 

[MrGisonni]

Rowaphos

 

[topjimmy]

If you haven't bought anything yet I have some seaklear that I mix up with RO. I put 5 ml into 500 ml and dose about 5ml of that every day into my 75g. I imagine you would only need a little at a time. I work in Akron but won't be back in the office until Tuesday.

 

[SauceyReef]

If you haven't bought anything yet I have some seaklear that I mix up with RO. I put 5 ml into 500 ml and dose about 5ml of that every day into my 75g. I imagine you would only need a little at a time. I work in Akron but won't be back in the office until Tuesday.

I appreciate that! I should be fine though. This thread is a bit old. Live Phyto has been treating me well helping me reduce phosphates organically.