Okay -- my corys have been in their 2.5g QT tank for a couple of days now. I moved over the gravel and an artificial plant and a live plant that had been in my 2g betta tank to help start its cycle. The parameters had been fine until this morning. Nitrites were around .25 and ammonia was around .50. I immediately did a 50% water change. I have waited a little over an hour and I just tested the water again. My nitrites are a little less than .25, but not quite at 0, the ammonia is around .25. Is this low enough or should I do another PWC
?? I don't want my parameters to get out of hand with these new corys. Any advice?