Po4 no3 inbalance

[Anthygod]

Hello guys - so my Tank is standing about 2-3 months but 75% of the Rocks and water was Süd from Tank before i just upgraded to a Bigger tank.
In the First Month i had 0 po4 and 0 no3
Now After feeding more i had 18-20 No3 - the Last two days i noticed my acans Not as much open as the other days and they Not a much open till now so i Made tests again and i have 0.01 Po4 and 21,5 no3 …. Thats the Problem i think - what Could i do to get this in Balance ? Would a water change about 30% help ? So i have atleast lower nitrates?
Thank you very much

 

[Randy Holmes-Farley Verified Community Expert]

IMO, it's not a matter of "balance", but of having sufficient N and P.

If phosphate is too low, I'd look to raise it, and in this case, dosing is probably the best way since feeding more will boost nitrate too high.