I have 2 black moors, not sure of the age. I have had them for about 6 months. Yesterday we moved them from a 10 gallon to a 20 gallon tank. This morning I went to check on them and they were both in the corner of the tank laying on the bottom. I thought they were dead, but when I tapped on the tank, they both "woke up" and swam away. I fed them and they ate fine. They seem to be acting like they always do. Were they cuddling??