nitrates don't go down anymore

[coburn13]

I had nitrates at 50 and phosphates at 0.40, I started using pro bio s and nitraphosminus with the recommended dose. 2 months later the nitrates are in 5 and the phosphates in 0.15. but I have been trying to lower nitrates of 5 and phosphates of 0.15 for more than a month and I do not get it. The dose is 5ml per day for 300l and 3 drops of pro bio, what can I do? Would it be good to increase the dose? or add NP Pro?

Thank you very much and greetings

 

[Aquaforest]

Hello,
For situation like this we recommend to find solution of high po4 only is to find source of this - maybe you feed too much dry fish foods?

I think for now you should stay with your dose and add Phoshate Minus: https://aquaforest.eu/en/product/phosphateminus/