I have 5 otos in my larger tank. For the last month or two, I have never seen more than 3 or 4 of them, so yesterday I finally edited my signature to say I only had 4 left. I had one that was sick a while back, and I assumed he had passed on and got eaten.

This morning I was trying to count my new cherry shrimp, and realised I could see 5 otos Obviously one has been in hiding