Mine do the same thing. There's always one or two that are on the other side of the tank and then they come back. I had one that would stay under a rock 90% of the time. Never figured it out. Overall really good schoolers Had mine about a year and they still school tight.Thanks . 5 of them have stayed together since I got them , but 2 go there own way for a bit then come back to others for a bit . The Lewis and Clark of the group I guess .
That's what these do . They didn't eat much in quarantine , but they have made up for it since I put them in the 75 . I have 2 angels in with them and the Neons will push them out of the way to eat . I am glad everybody gets along so far .Mine do the same thing. There's always one or two that are on the other side of the tank and then they come back. I had one that would stay under a rock 90% of the time. Never figured it out. Overall really good schoolers Had mine about a year and they still school tight.