Tetras Aren't Schooling

[CCXGT]

The only time I see them together is
din-din time.
The rest of the day they just spend lazily wondering about in groups of 2-3, pretty much like this ::

Am I missing something blatantly obvious?

 

[lordT]

What is your schools size?

 

[AtHomeWithTwins]

Its probably a good thing... Means their not stressed! If u really wanna see them school up throw a pirahna in the tank!

 

[CCXGT]

I currently have 9 Neons in there