Ok so I thought one of my O's was dead today when I got home from work. He was back behind some of the plants and rocks and was on his side on the bottom. He was fine earlier today no odd swimming or laying around. But I moved the plant and he took off like I had startled him from his nap or something. Swimming around fine now and does not appear sick in any way. Water parameters are normal no spikes or anything unusual. Has anybody else seen this before???

.