Many folks would just leave it and put stuff in. Personally on my current tank I let the nitrite come down on its own whilst I quarantined stuff to go in it. This also gave adequate fallow period in the display for the little live rock I added to that, for any pests to die off.Gm. So question. Just checked parameters and ph is now 7.8, ammonia 0, Nitrite 5.0ppm and nitrate 160 ppm. All still same. Should I water change again or just leave it?