O13SC3N3 Posted January 19, 2021 Share Posted January 19, 2021 Not sure if this were I should post this. But I noticed one of my Otocinclus has a red spot underneath the mouth between the gills. The other otos don't show this. He/she is very active munching away still. Thoughts? Oh 6.8 to 7.2 co2 during day, airstones at night. 0 Amonia, 0 Nitrite, ~10ppm nitrate (when I fertilized) gh/kh 8. Temp drops to about 74 to 74.5 in the morning. Climbs to about 76.5 in the evening on light cycle decline, over a 12-14 hour period. Link to comment Share on other sites More sharing options...
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