I put in a Seachem Ammonia Alert today. I have some rotting squid that I have in the tank for a week or so. It is kind of hard to tell the colour, it could be yellow (>0.02ppm), or between yellow and green (0.05 ppm), but definitely under 0.05ppm. I wonder if I can remove the rotting squid and start introducing a small number of cherry shrimps?
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