Iv been seeing heaps of smelt schooling as of late, 200-300+ in a school. They school nothing like the bullies did/do. Bullies do short sharp movements and they dont do it all that often, i didnt even notice them schooling untill i took time to watch them, when iv seen them do it the population has been huge in the area(like over populated). Some of them seem to be even social sharing hiding spots(some odd spots)
A school of 30+ smelt in a tank would be untimate.
Hope that makes sense, my brain is failing today.