Red seat two reagents for ammonia, but strips for everything else....Are you using a liquid test kit for testing your parameters. Strips are very unreliable and most often inaccurate. Thank goodness for Prime. You saved your fishie's bacon during this spike. However, you need to monitor closely the parameters and step up the water changes for a few days to make sure the parameters are pristine.
If there is illness in your tank, pristine water will help the fish's immune system fight this, hopefully.
I did a 50% water change, and it didnt really seem to make a dent, when I did the 50% water change, I couldn't find any dead fish. I did a count and they all seem to be there.
According to what I have, its right back where it was but not he PH has risen. This is because my PH on tap is high. I just re-dosed with prime and will do another 30% later.
Tank running since early feb.