I picked this little guy up about a week ago, which makes a small school of 3 SAEs. It's not schooling/shoaling with the other 2, but I am thinking that it's still too young. It's only about 2.25 inches long, and is still a little shy and stays in the plants alot. When it is out and about, it's very fast!

I would also say that as you have only had the fish a week it might not of settled in yet

You know, I didn't even think about that. Makes sense though because it was awhile before the first two started hanging out together all the time.