Also, my kids don’t really have much access to the tank, so I don’t have any worries about them, feeding her, putting into the tank outside of when I have specifically brought them food and supervisedI looked at the video of your gramma and I don't see much of a problem. These fish like to hide on small holes in the rock when threatened or stressed. Mine is about the same size as yours and will find holes in rocks as small as 1/2 inch and completely disappear. As Jay said your pH is low and you should not be seeing Ammonia even with a dead fish in your tank. I would do two things. 1. Plan for a pathogen popping up and have a hospital Tank read to go and have Copperpower and Prazi ready. 2. I hear a lot of commotion on your video. Ask your kids if they are feeding or sticking their hands in your tank and try to step away to reduce the stress on your fish.
