Was dosing ammonia up to 4-5ppms had the Nitrite spike, ammonia is down to 0 every day. But Nitrite is stuck at 1ppm for the last 6 days now. Any ideas?
It's not stuck. It can take 3 weeks for bacteria to build to handle the nitrite. Be patient, and also do as suggested above and keep an eye on pH and KH. Don't let either get too low or the processes can be inhibited. But this is NOT what's happened in your case. Your pH is up and fine, but check KH also. If KH is very low 1-2, pH could crash suddenly. This is something in your case that you want to keep an eye on because you're using a lot of ammonia. You could cut that dose in half to 2ppm or so and still stock fully. You'll also then have less nitrate to deal with at the end also.But Nitrite is stuck at 1ppm for the last 6 days now. Any ideas?