Nitrate Spikes to 5.0
I just thought I'd share this. I was medicating my QT tank with Melafix and had to remove cartridges from my filter. Nitrate spiked to 5.0 ppm in a very short span of time. I did 50% WC, put the cartridges back in and dumped a very unhealthy sword in (I figure, I'll just sacrifice it). Next day, Nitrate is back to 0 and everything else is still stable. The sword didn't get any worse. I'll probably keep it in there for the time being especially now that it now has a trace of Melafix.